added @Beta and source headers as per adrian's comments

This commit is contained in:
Alex Heneveld 2011-12-02 15:17:39 +00:00
parent d42469d450
commit 126cdf6dd5
4 changed files with 86 additions and 0 deletions

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/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.
*/
package org.jclouds.predicates;
import java.util.concurrent.Callable;
import com.google.common.annotations.Beta;
/** Provides a facility to convert an arbitrary Callable to a Predicate, implementing PredicateWithResult,
* for use e.g. with Retryables.retryGetting... methods */
@Beta
public abstract class PredicateCallable<Result> implements PredicateWithResult<Void, Result>, Callable<Result> {
Result lastResult;

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/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.
*/
package org.jclouds.predicates;
import com.google.common.annotations.Beta;
import com.google.common.base.Predicate;
@Beta
public interface PredicateWithResult<Input,Result> extends Predicate<Input> {
Result getResult();

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/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.
*/
package org.jclouds.predicates;
import java.util.concurrent.TimeUnit;
import com.google.common.annotations.Beta;
import com.google.common.base.Predicate;
/** convenience methods to retry application of a predicate, and optionally (reducing quite a bit of boilerplate)
* get the final result or throw assertion error
*
* @author alex heneveld
*/
@Beta
public class Retryables {
public static <Input> boolean retry(Predicate<Input> predicate, Input input, long maxWaitMillis) {

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/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.
*/
package org.jclouds.predicates;
import static java.util.concurrent.TimeUnit.MILLISECONDS;