/*
* Copyright 2017 the original author or authors.
*
* Licensed 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.gradle.api.internal.changedetection.rules;
import com.google.common.collect.AbstractIterator;
import org.gradle.api.GradleException;
import org.gradle.api.Task;
import java.util.Iterator;
public class ErrorHandlingTaskStateChanges implements TaskStateChanges {
private final Task task;
private final TaskStateChanges delegate;
ErrorHandlingTaskStateChanges(Task task, TaskStateChanges delegate) {
this.task = task;
this.delegate = delegate;
}
@Override
public void snapshotAfterTask() {
delegate.snapshotAfterTask();
}
@Override
public Iterator<TaskStateChange> iterator() {
final Iterator<TaskStateChange> iterator;
try {
iterator = delegate.iterator();
} catch (Exception ex) {
throw new GradleException(String.format("Cannot determine task state changes for %s", task), ex);
}
return new AbstractIterator<TaskStateChange>() {
@Override
protected TaskStateChange computeNext() {
try {
if (iterator.hasNext()) {
return iterator.next();
}
} catch (Exception ex) {
throw new GradleException(String.format("Cannot determine task state changes for %s", task), ex);
}
return endOfData();
}
};
}
}