Apache
/
nifi
mirror of https://github.com/apache/nifi.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'develop' of http://git-wip-us.apache.org/repos/asf/incubator-nifi into develop

This commit is contained in:
Jenn Barnabee 2015-04-20 04:36:30 -04:00
parent 574e57a4fb 53b6ac3333
commit bef65db72c
1 changed files with 19 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
nifi/nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/EvaluateJsonPath.java
View File

@ -75,6 +75,9 @@ public class EvaluateJsonPath extends AbstractJsonPathProcessor {
public static final String RETURN_TYPE_JSON = "json";
public static final String RETURN_TYPE_SCALAR = "scalar";
public static final String PATH_NOT_FOUND_IGNORE = "ignore";
public static final String PATH_NOT_FOUND_WARN = "warn";
public static final PropertyDescriptor DESTINATION = new PropertyDescriptor.Builder()
.name("Destination")
.description("Indicates whether the results of the JsonPath evaluation are written to the FlowFile content or a FlowFile attribute; if using attribute, must specify the Attribute Name property. If set to flowfile-content, only one JsonPath may be specified, and the property name is ignored.")
@ -90,6 +93,14 @@ public class EvaluateJsonPath extends AbstractJsonPathProcessor {
.allowableValues(RETURN_TYPE_AUTO, RETURN_TYPE_JSON, RETURN_TYPE_SCALAR)
.defaultValue(RETURN_TYPE_AUTO)
.build();
public static final PropertyDescriptor PATH_NOT_FOUND = new PropertyDescriptor.Builder()
.name("Path Not Found Behavior")
.description("Indicates how to handle missing JSON path expressions when destination is set to 'flowfile-attribute'. Selecting 'warn' will generate a warning when a JSON path expression is not found.")
.required(true)
.allowableValues(PATH_NOT_FOUND_WARN, PATH_NOT_FOUND_IGNORE)
.defaultValue(PATH_NOT_FOUND_IGNORE)
.build();
public static final Relationship REL_MATCH = new Relationship.Builder().name("matched").description("FlowFiles are routed to this relationship when the JsonPath is successfully evaluated and the FlowFile is modified as a result").build();
public static final Relationship REL_NO_MATCH = new Relationship.Builder().name("unmatched").description("FlowFiles are routed to this relationship when the JsonPath does not match the content of the FlowFile and the Destination is set to flowfile-content").build();
@ -111,6 +122,7 @@ public class EvaluateJsonPath extends AbstractJsonPathProcessor {
final List<PropertyDescriptor> properties = new ArrayList<>();
properties.add(DESTINATION);
properties.add(RETURN_TYPE);
properties.add(PATH_NOT_FOUND);
properties.add(NULL_VALUE_DEFAULT_REPRESENTATION);
this.properties = Collections.unmodifiableList(properties);
}
@ -239,6 +251,7 @@ public class EvaluateJsonPath extends AbstractJsonPathProcessor {
String jsonPathAttrKey = attributeJsonPathEntry.getKey();
JsonPath jsonPathExp = attributeJsonPathEntry.getValue();
final String pathNotFound = processContext.getProperty(PATH_NOT_FOUND).getValue();
final ObjectHolder<Object> resultHolder = new ObjectHolder<>(null);
try {
@ -251,7 +264,11 @@ public class EvaluateJsonPath extends AbstractJsonPathProcessor {
}
resultHolder.set(result);
} catch (PathNotFoundException e) {
logger.warn("FlowFile {} could not find path {} for attribute key {}.", new Object[]{flowFile.getId(), jsonPathExp.getPath(), jsonPathAttrKey}, e);
if (pathNotFound.equals(PATH_NOT_FOUND_WARN)) {
logger.warn("FlowFile {} could not find path {} for attribute key {}.", new Object[]{flowFile.getId(), jsonPathExp.getPath(), jsonPathAttrKey}, e);
}
if (destination.equals(DESTINATION_ATTRIBUTE)) {
jsonPathResults.put(jsonPathAttrKey, StringUtils.EMPTY);
continue;
@ -283,4 +300,4 @@ public class EvaluateJsonPath extends AbstractJsonPathProcessor {
flowFile = processSession.putAllAttributes(flowFile, jsonPathResults);
processSession.transfer(flowFile, REL_MATCH);
}
}
}