mirror of https://github.com/apache/lucene.git
SOLR-8972: Add GraphHandler and GraphMLResponseWriter to support graph visualizations
This commit is contained in:
jbernste
parent
7d4f387384
commit
be1cb9a1cd
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@ -2111,6 +2111,7 @@ public final class SolrCore implements SolrInfoMBean, Closeable {
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m.put("standard", m.get("xml"));
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m.put(CommonParams.JSON, new JSONResponseWriter());
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m.put("geojson", new GeoJSONResponseWriter());
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m.put("graphml", new GraphMLResponseWriter());
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m.put("python", new PythonResponseWriter());
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m.put("php", new PHPResponseWriter());
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m.put("phps", new PHPSerializedResponseWriter());
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@ -0,0 +1,282 @@
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package org.apache.solr.handler;
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.io.IOException;
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import java.lang.invoke.MethodHandles;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import org.apache.solr.client.solrj.io.SolrClientCache;
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import org.apache.solr.client.solrj.io.Tuple;
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import org.apache.solr.client.solrj.io.comp.StreamComparator;
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import org.apache.solr.client.solrj.io.graph.GatherNodesStream;
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import org.apache.solr.client.solrj.io.graph.ShortestPathStream;
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import org.apache.solr.client.solrj.io.graph.Traversal;
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import org.apache.solr.client.solrj.io.ops.ConcatOperation;
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import org.apache.solr.client.solrj.io.ops.DistinctOperation;
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import org.apache.solr.client.solrj.io.ops.GroupOperation;
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import org.apache.solr.client.solrj.io.ops.ReplaceOperation;
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import org.apache.solr.client.solrj.io.stream.*;
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import org.apache.solr.client.solrj.io.stream.expr.Explanation;
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import org.apache.solr.client.solrj.io.stream.expr.Expressible;
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import org.apache.solr.client.solrj.io.stream.expr.StreamFactory;
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import org.apache.solr.client.solrj.io.stream.metrics.CountMetric;
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import org.apache.solr.client.solrj.io.stream.metrics.MaxMetric;
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import org.apache.solr.client.solrj.io.stream.metrics.MeanMetric;
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import org.apache.solr.client.solrj.io.stream.metrics.MinMetric;
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import org.apache.solr.client.solrj.io.stream.metrics.SumMetric;
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import org.apache.solr.common.SolrException;
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import org.apache.solr.common.params.CommonParams;
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import org.apache.solr.common.params.ModifiableSolrParams;
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import org.apache.solr.common.params.SolrParams;
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import org.apache.solr.common.util.NamedList;
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import org.apache.solr.core.CloseHook;
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import org.apache.solr.core.CoreContainer;
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import org.apache.solr.core.SolrCore;
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import org.apache.solr.request.SolrQueryRequest;
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import org.apache.solr.response.SolrQueryResponse;
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import org.apache.solr.security.AuthorizationContext;
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import org.apache.solr.security.PermissionNameProvider;
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import org.apache.solr.util.plugin.SolrCoreAware;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class GraphHandler extends RequestHandlerBase implements SolrCoreAware, PermissionNameProvider {
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private StreamFactory streamFactory = new StreamFactory();
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private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
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private String coreName;
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@Override
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public PermissionNameProvider.Name getPermissionName(AuthorizationContext request) {
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return PermissionNameProvider.Name.READ_PERM;
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}
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public void inform(SolrCore core) {
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/* The stream factory will always contain the zkUrl for the given collection
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* Adds default streams with their corresponding function names. These
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* defaults can be overridden or added to in the solrConfig in the stream
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* RequestHandler def. Example config override
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* <lst name="streamFunctions">
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* <str name="group">org.apache.solr.client.solrj.io.stream.ReducerStream</str>
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* <str name="count">org.apache.solr.client.solrj.io.stream.RecordCountStream</str>
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* </lst>
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* */
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String defaultCollection = null;
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String defaultZkhost = null;
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CoreContainer coreContainer = core.getCoreDescriptor().getCoreContainer();
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this.coreName = core.getName();
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if(coreContainer.isZooKeeperAware()) {
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defaultCollection = core.getCoreDescriptor().getCollectionName();
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defaultZkhost = core.getCoreDescriptor().getCoreContainer().getZkController().getZkServerAddress();
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streamFactory.withCollectionZkHost(defaultCollection, defaultZkhost);
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streamFactory.withDefaultZkHost(defaultZkhost);
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}
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streamFactory
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// streams
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.withFunctionName("search", CloudSolrStream.class)
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.withFunctionName("merge", MergeStream.class)
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.withFunctionName("unique", UniqueStream.class)
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.withFunctionName("top", RankStream.class)
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.withFunctionName("group", GroupOperation.class)
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.withFunctionName("reduce", ReducerStream.class)
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.withFunctionName("parallel", ParallelStream.class)
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.withFunctionName("rollup", RollupStream.class)
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.withFunctionName("stats", StatsStream.class)
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.withFunctionName("innerJoin", InnerJoinStream.class)
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.withFunctionName("leftOuterJoin", LeftOuterJoinStream.class)
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.withFunctionName("hashJoin", HashJoinStream.class)
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.withFunctionName("outerHashJoin", OuterHashJoinStream.class)
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.withFunctionName("facet", FacetStream.class)
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.withFunctionName("update", UpdateStream.class)
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.withFunctionName("jdbc", JDBCStream.class)
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.withFunctionName("intersect", IntersectStream.class)
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.withFunctionName("complement", ComplementStream.class)
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.withFunctionName("daemon", DaemonStream.class)
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.withFunctionName("topic", TopicStream.class)
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.withFunctionName("shortestPath", ShortestPathStream.class)
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.withFunctionName("gatherNodes", GatherNodesStream.class)
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.withFunctionName("sort", SortStream.class)
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// metrics
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.withFunctionName("min", MinMetric.class)
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.withFunctionName("max", MaxMetric.class)
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.withFunctionName("avg", MeanMetric.class)
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.withFunctionName("sum", SumMetric.class)
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.withFunctionName("count", CountMetric.class)
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// tuple manipulation operations
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.withFunctionName("replace", ReplaceOperation.class)
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.withFunctionName("concat", ConcatOperation.class)
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// stream reduction operations
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.withFunctionName("group", GroupOperation.class)
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.withFunctionName("distinct", DistinctOperation.class);
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// This pulls all the overrides and additions from the config
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Object functionMappingsObj = initArgs.get("streamFunctions");
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if(null != functionMappingsObj){
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NamedList<?> functionMappings = (NamedList<?>)functionMappingsObj;
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for(Entry<String,?> functionMapping : functionMappings){
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Class<?> clazz = core.getResourceLoader().findClass((String)functionMapping.getValue(), Expressible.class);
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streamFactory.withFunctionName(functionMapping.getKey(), clazz);
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}
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}
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}
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public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception {
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SolrParams params = req.getParams();
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params = adjustParams(params);
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req.setParams(params);
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TupleStream tupleStream = null;
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try {
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tupleStream = this.streamFactory.constructStream(params.get("expr"));
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} catch (Exception e) {
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//Catch exceptions that occur while the stream is being created. This will include streaming expression parse rules.
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SolrException.log(logger, e);
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Map requestContext = req.getContext();
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requestContext.put("stream", new DummyErrorStream(e));
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return;
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}
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StreamContext context = new StreamContext();
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context.setSolrClientCache(StreamHandler.clientCache);
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context.put("core", this.coreName);
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Traversal traversal = new Traversal();
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context.put("traversal", traversal);
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tupleStream.setStreamContext(context);
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Map requestContext = req.getContext();
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requestContext.put("stream", new TimerStream(new ExceptionStream(tupleStream)));
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requestContext.put("traversal", traversal);
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}
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public String getDescription() {
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return "StreamHandler";
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}
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public String getSource() {
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return null;
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}
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public static class DummyErrorStream extends TupleStream {
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private Exception e;
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public DummyErrorStream(Exception e) {
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this.e = e;
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}
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public StreamComparator getStreamSort() {
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return null;
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}
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public void close() {
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}
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public void open() {
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}
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public Exception getException() {
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return this.e;
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}
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public void setStreamContext(StreamContext context) {
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}
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public List<TupleStream> children() {
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return null;
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}
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@Override
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public Explanation toExplanation(StreamFactory factory) throws IOException {
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return null;
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}
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public Tuple read() {
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String msg = e.getMessage();
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Map m = new HashMap();
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m.put("EOF", true);
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m.put("EXCEPTION", msg);
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return new Tuple(m);
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}
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}
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private SolrParams adjustParams(SolrParams params) {
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ModifiableSolrParams adjustedParams = new ModifiableSolrParams();
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adjustedParams.add(params);
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adjustedParams.add(CommonParams.OMIT_HEADER, "true");
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return adjustedParams;
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}
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public static class TimerStream extends TupleStream {
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private long begin;
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private TupleStream tupleStream;
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public TimerStream(TupleStream tupleStream) {
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this.tupleStream = tupleStream;
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}
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public StreamComparator getStreamSort() {
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return this.tupleStream.getStreamSort();
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}
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public void close() throws IOException {
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this.tupleStream.close();
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}
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public void open() throws IOException {
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this.begin = System.nanoTime();
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this.tupleStream.open();
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}
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public void setStreamContext(StreamContext context) {
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this.tupleStream.setStreamContext(context);
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}
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public List<TupleStream> children() {
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return this.tupleStream.children();
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}
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@Override
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public Explanation toExplanation(StreamFactory factory) throws IOException {
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return null;
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}
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public Tuple read() throws IOException {
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Tuple tuple = this.tupleStream.read();
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if(tuple.EOF) {
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long totalTime = (System.nanoTime() - begin) / 1000000;
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tuple.fields.put("RESPONSE_TIME", totalTime);
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}
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return tuple;
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}
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}
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}
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@ -0,0 +1,167 @@
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package org.apache.solr.response;
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.io.Writer;
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import java.lang.invoke.MethodHandles;
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import java.util.Iterator;
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import java.util.List;
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import java.util.ArrayList;
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import org.apache.solr.client.solrj.io.graph.Traversal;
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import org.apache.solr.client.solrj.io.stream.TupleStream;
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import org.apache.solr.client.solrj.io.Tuple;
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import org.apache.solr.common.util.NamedList;
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import org.apache.solr.handler.GraphHandler;
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import org.apache.solr.request.SolrQueryRequest;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class GraphMLResponseWriter implements QueryResponseWriter {
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private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
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public void init(NamedList args) {
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/* NOOP */
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}
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public String getContentType(SolrQueryRequest req, SolrQueryResponse res) {
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return "application/xml";
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}
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public void write(Writer writer, SolrQueryRequest req, SolrQueryResponse res) throws IOException {
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Exception e1 = res.getException();
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if(e1 != null) {
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e1.printStackTrace(new PrintWriter(writer));
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return;
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}
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TupleStream stream = (TupleStream)req.getContext().get("stream");
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if(stream instanceof GraphHandler.DummyErrorStream) {
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GraphHandler.DummyErrorStream d = (GraphHandler.DummyErrorStream)stream;
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Exception e = d.getException();
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e.printStackTrace(new PrintWriter(writer));
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return;
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}
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Traversal traversal = (Traversal)req.getContext().get("traversal");
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PrintWriter printWriter = new PrintWriter(writer);
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try {
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stream.open();
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Tuple tuple = null;
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int edgeCount = 0;
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printWriter.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
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printWriter.println("<graphml xmlns=\"http://graphml.graphdrawing.org/xmlns\" ");
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printWriter.println("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" ");
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printWriter.print("xsi:schemaLocation=\"http://graphml.graphdrawing.org/xmlns ");
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printWriter.println("http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd\">");
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printWriter.println("<graph id=\"G\" edgedefault=\"directed\">");
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while (true) {
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//Output the graph
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tuple = stream.read();
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if (tuple.EOF) {
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break;
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}
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String id = tuple.getString("node");
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if (traversal.isMultiCollection()) {
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id = tuple.getString("collection") + "." + id;
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}
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writer.write("<node id=\""+replace(id)+"\"");
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List<String> outfields = new ArrayList();
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Iterator<String> keys = tuple.fields.keySet().iterator();
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while(keys.hasNext()) {
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String key = keys.next();
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if(key.equals("node") || key.equals("ancestors") || key.equals("collection")) {
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continue;
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} else {
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outfields.add(key);
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}
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}
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if (outfields.size() > 0) {
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printWriter.println(">");
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for (String nodeAttribute : outfields) {
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Object o = tuple.get(nodeAttribute);
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if (o != null) {
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printWriter.println("<data key=\""+nodeAttribute+"\">" + o.toString() + "</data>");
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}
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}
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printWriter.println("</node>");
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} else {
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printWriter.println("/>");
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}
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List<String> ancestors = tuple.getStrings("ancestors");
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if(ancestors != null) {
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for (String ancestor : ancestors) {
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++edgeCount;
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writer.write("<edge id=\"" + edgeCount + "\" ");
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writer.write(" source=\"" + replace(ancestor) + "\" ");
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printWriter.println(" target=\"" + replace(id) + "\"/>");
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}
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}
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}
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writer.write("</graph></graphml>");
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} finally {
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stream.close();
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}
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}
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private String replace(String s) {
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if(s.indexOf(">") > -1) {
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s = s.replace(">", ">");
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}
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if(s.indexOf("<") > -1) {
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s = s.replace("<", "<");
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}
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if(s.indexOf("\"")> -1) {
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s = s.replace("\"", """);
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}
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if(s.indexOf("'") > -1) {
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s = s.replace("'", "'");
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}
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if(s.indexOf("&") > -1) {
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s = s.replace("&", "&");
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}
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return s;
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}
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}
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@ -84,6 +84,13 @@
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"distrib": false
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}
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},
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"/graph": {
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"class": "solr.GraphHandler",
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"invariants": {
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"wt": "graphml",
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"distrib": false
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}
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},
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"/stream": {
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"class": "solr.StreamHandler",
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"invariants": {
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@ -0,0 +1,155 @@
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package org.apache.solr.response;
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership.
|
||||
* The ASF licenses this file to You under the Apache License, Version 2.0
|
||||
* (the "License"); you may not use this file except in compliance with
|
||||
* the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
import java.io.StringWriter;
|
||||
import java.util.Map;
|
||||
import java.util.HashMap;
|
||||
import java.util.List;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Iterator;
|
||||
|
||||
import org.apache.solr.SolrTestCaseJ4;
|
||||
import org.apache.solr.client.solrj.io.comp.StreamComparator;
|
||||
import org.apache.solr.client.solrj.io.graph.Traversal;
|
||||
import org.apache.solr.client.solrj.io.stream.TupleStream;
|
||||
import org.apache.solr.client.solrj.io.stream.StreamContext;
|
||||
import org.apache.solr.client.solrj.io.stream.expr.StreamFactory;
|
||||
import org.apache.solr.client.solrj.io.Tuple;
|
||||
import org.apache.solr.client.solrj.io.stream.expr.Explanation;
|
||||
import org.apache.solr.request.SolrQueryRequest;
|
||||
import org.junit.BeforeClass;
|
||||
import org.junit.Test;
|
||||
|
||||
public class TestGraphMLResponseWriter extends SolrTestCaseJ4 {
|
||||
@BeforeClass
|
||||
public static void beforeClass() throws Exception {
|
||||
System.setProperty("enable.update.log", "false"); // schema12 doesn't support _version_
|
||||
initCore("solrconfig.xml","schema12.xml");
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testGraphMLOutput() throws Exception {
|
||||
SolrQueryRequest request = req("blah", "blah"); // Just need a request to attach the stream and traversal to.
|
||||
SolrQueryResponse response = new SolrQueryResponse();
|
||||
Map context = request.getContext();
|
||||
TupleStream stream = new TestStream(); //Simulates a GatherNodesStream
|
||||
Traversal traversal = new Traversal();
|
||||
context.put("traversal", traversal);
|
||||
context.put("stream", stream);
|
||||
StringWriter writer = new StringWriter();
|
||||
|
||||
GraphMLResponseWriter graphMLResponseWriter = new GraphMLResponseWriter();
|
||||
graphMLResponseWriter.write(writer, request, response);
|
||||
String graphML = writer.toString();
|
||||
|
||||
//Validate the nodes
|
||||
String error = h.validateXPath(graphML,
|
||||
"//graph/node[1][@id ='bill']",
|
||||
"//graph/node[2][@id ='jim']",
|
||||
"//graph/node[3][@id ='max']");
|
||||
if(error != null) {
|
||||
throw new Exception(error);
|
||||
}
|
||||
//Validate the edges
|
||||
error = h.validateXPath(graphML,
|
||||
"//graph/edge[1][@source ='jim']",
|
||||
"//graph/edge[1][@target ='bill']",
|
||||
"//graph/edge[2][@source ='max']",
|
||||
"//graph/edge[2][@target ='bill']",
|
||||
"//graph/edge[3][@source ='max']",
|
||||
"//graph/edge[3][@target ='jim']",
|
||||
"//graph/edge[4][@source ='jim']",
|
||||
"//graph/edge[4][@target ='max']"
|
||||
);
|
||||
|
||||
if(error != null) {
|
||||
throw new Exception(error);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
private class TestStream extends TupleStream {
|
||||
|
||||
private Iterator<Tuple> tuples;
|
||||
|
||||
public TestStream() {
|
||||
//Create some nodes
|
||||
List<Tuple> testTuples = new ArrayList();
|
||||
Map m1 = new HashMap();
|
||||
|
||||
List<String> an1 = new ArrayList();
|
||||
an1.add("jim");
|
||||
an1.add("max");
|
||||
m1.put("node", "bill");
|
||||
m1.put("ancestors", an1);
|
||||
testTuples.add(new Tuple(m1));
|
||||
|
||||
Map m2 = new HashMap();
|
||||
List<String> an2 = new ArrayList();
|
||||
an2.add("max");
|
||||
m2.put("node", "jim");
|
||||
m2.put("ancestors", an2);
|
||||
testTuples.add(new Tuple(m2));
|
||||
|
||||
Map m3 = new HashMap();
|
||||
List<String> an3 = new ArrayList();
|
||||
an3.add("jim");
|
||||
m3.put("node", "max");
|
||||
m3.put("ancestors", an3);
|
||||
testTuples.add(new Tuple(m3));
|
||||
|
||||
tuples = testTuples.iterator();
|
||||
}
|
||||
|
||||
public StreamComparator getStreamSort() {
|
||||
return null;
|
||||
}
|
||||
|
||||
public void close() {
|
||||
|
||||
}
|
||||
|
||||
public void open() {
|
||||
|
||||
}
|
||||
|
||||
public List<TupleStream> children() {
|
||||
return null;
|
||||
}
|
||||
|
||||
public Tuple read() {
|
||||
if(tuples.hasNext()) {
|
||||
return tuples.next();
|
||||
} else {
|
||||
Map map = new HashMap();
|
||||
map.put("EOF", true);
|
||||
return new Tuple(map);
|
||||
}
|
||||
}
|
||||
|
||||
public void setStreamContext(StreamContext streamContext) {
|
||||
|
||||
}
|
||||
|
||||
public Explanation toExplanation(StreamFactory factory) {
|
||||
return null;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
|
@ -18,6 +18,8 @@ package org.apache.solr.client.solrj.io.graph;
|
|||
*/
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.InputStreamReader;
|
||||
import java.io.InputStream;
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collections;
|
||||
import java.util.HashMap;
|
||||
|
|
@ -28,6 +30,10 @@ import java.util.Set;
|
|||
|
||||
import org.apache.lucene.util.LuceneTestCase;
|
||||
import org.apache.lucene.util.LuceneTestCase.Slow;
|
||||
import org.apache.solr.client.solrj.SolrRequest;
|
||||
import org.apache.solr.client.solrj.embedded.JettySolrRunner;
|
||||
import org.apache.solr.client.solrj.impl.HttpSolrClient;
|
||||
import org.apache.solr.client.solrj.impl.InputStreamResponseParser;
|
||||
import org.apache.solr.client.solrj.io.SolrClientCache;
|
||||
import org.apache.solr.client.solrj.io.Tuple;
|
||||
import org.apache.solr.client.solrj.io.comp.ComparatorOrder;
|
||||
|
|
@ -43,9 +49,12 @@ import org.apache.solr.client.solrj.io.stream.metrics.MeanMetric;
|
|||
import org.apache.solr.client.solrj.io.stream.metrics.MinMetric;
|
||||
import org.apache.solr.client.solrj.io.stream.metrics.SumMetric;
|
||||
import org.apache.solr.client.solrj.request.CollectionAdminRequest;
|
||||
import org.apache.solr.client.solrj.request.QueryRequest;
|
||||
import org.apache.solr.client.solrj.request.UpdateRequest;
|
||||
import org.apache.solr.cloud.AbstractDistribZkTestBase;
|
||||
import org.apache.solr.cloud.SolrCloudTestCase;
|
||||
import org.apache.solr.common.params.ModifiableSolrParams;
|
||||
import org.apache.solr.common.util.NamedList;
|
||||
import org.junit.Before;
|
||||
import org.junit.BeforeClass;
|
||||
import org.junit.Test;
|
||||
|
|
@ -634,6 +643,84 @@ public class GraphExpressionTest extends SolrCloudTestCase {
|
|||
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testGraphHandler() throws Exception {
|
||||
|
||||
|
||||
new UpdateRequest()
|
||||
.add(id, "0", "from_s", "bill", "to_s", "jim", "message_t", "Hello jim")
|
||||
.add(id, "1", "from_s", "bill", "to_s", "sam", "message_t", "Hello sam")
|
||||
.add(id, "2", "from_s", "bill", "to_s", "max", "message_t", "Hello max")
|
||||
.add(id, "3", "from_s", "max", "to_s", "kip", "message_t", "Hello kip")
|
||||
.add(id, "4", "from_s", "sam", "to_s", "steve", "message_t", "Hello steve")
|
||||
.add(id, "5", "from_s", "jim", "to_s", "ann", "message_t", "Hello steve")
|
||||
.commit(cluster.getSolrClient(), COLLECTION);
|
||||
|
||||
commit();
|
||||
|
||||
List<JettySolrRunner> runners = cluster.getJettySolrRunners();
|
||||
JettySolrRunner runner = runners.get(0);
|
||||
String url = runner.getBaseUrl().toString();
|
||||
|
||||
HttpSolrClient client = new HttpSolrClient(url);
|
||||
ModifiableSolrParams params = new ModifiableSolrParams();
|
||||
|
||||
|
||||
String expr = "sort(by=\"node asc\", gatherNodes(collection1, " +
|
||||
"walk=\"bill->from_s\"," +
|
||||
"trackTraversal=\"true\"," +
|
||||
"gather=\"to_s\"))";
|
||||
|
||||
params.add("expr", expr);
|
||||
QueryRequest query = new QueryRequest(params);
|
||||
query.setPath("/collection1/graph");
|
||||
|
||||
query.setResponseParser(new InputStreamResponseParser("xml"));
|
||||
query.setMethod(SolrRequest.METHOD.POST);
|
||||
|
||||
NamedList<Object> genericResponse = client.request(query);
|
||||
|
||||
|
||||
InputStream stream = (InputStream)genericResponse.get("stream");
|
||||
InputStreamReader reader = new InputStreamReader(stream, "UTF-8");
|
||||
String xml = readString(reader);
|
||||
//Validate the nodes
|
||||
String error = h.validateXPath(xml,
|
||||
"//graph/node[1][@id ='jim']",
|
||||
"//graph/node[2][@id ='max']",
|
||||
"//graph/node[3][@id ='sam']");
|
||||
if(error != null) {
|
||||
throw new Exception(error);
|
||||
}
|
||||
//Validate the edges
|
||||
error = h.validateXPath(xml,
|
||||
"//graph/edge[1][@source ='bill']",
|
||||
"//graph/edge[1][@target ='jim']",
|
||||
"//graph/edge[2][@source ='bill']",
|
||||
"//graph/edge[2][@target ='max']",
|
||||
"//graph/edge[3][@source ='bill']",
|
||||
"//graph/edge[3][@target ='sam']");
|
||||
|
||||
if(error != null) {
|
||||
throw new Exception(error);
|
||||
}
|
||||
|
||||
client.close();
|
||||
}
|
||||
|
||||
private String readString(InputStreamReader reader) throws Exception{
|
||||
StringBuilder builder = new StringBuilder();
|
||||
int c = 0;
|
||||
while((c = reader.read()) != -1) {
|
||||
builder.append(((char)c));
|
||||
}
|
||||
|
||||
return builder.toString();
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
protected List<Tuple> getTuples(TupleStream tupleStream) throws IOException {
|
||||
tupleStream.open();
|
||||
List<Tuple> tuples = new ArrayList();
|
||||
|
|
@ -675,6 +762,8 @@ public class GraphExpressionTest extends SolrCloudTestCase {
|
|||
throw new Exception("Longs not equal:"+expected+" : "+actual);
|
||||
}
|
||||
|
||||
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -175,7 +175,6 @@ public class StreamExpressionTest extends SolrCloudTestCase {
|
|||
assert(tuples.size() == 3);
|
||||
assertOrder(tuples, 0, 3, 4);
|
||||
assertLong(tuples.get(1), "a_i", 3);
|
||||
|
||||
}
|
||||
|
||||
@Test
|
||||
|
|
|
|||
Loading…
Reference in New Issue