/*
* Copyright 2016 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.tasks;
import com.google.common.collect.AbstractIterator;
import com.google.common.collect.Iterators;
import org.gradle.api.internal.file.FileResolver;
import org.gradle.util.GFileUtils;
import java.io.File;
import java.util.Iterator;
import java.util.Map;
public class CompositeTaskOutputPropertySpec extends AbstractTaskOutputPropertySpec {
private final CacheableTaskOutputFilePropertySpec.OutputType outputType;
private final Object paths;
private final String taskName;
private final FileResolver resolver;
public CompositeTaskOutputPropertySpec(String taskName, FileResolver resolver, CacheableTaskOutputFilePropertySpec.OutputType outputType, Object[] paths) {
this.taskName = taskName;
this.resolver = resolver;
this.outputType = outputType;
this.paths = (paths != null && paths.length == 1)
? paths[0]
: paths;
}
public CacheableTaskOutputFilePropertySpec.OutputType getOutputType() {
return outputType;
}
public Iterator<TaskOutputFilePropertySpec> resolveToOutputProperties() {
Object unpackedPaths = GFileUtils.unpack(paths);
if (unpackedPaths == null) {
return Iterators.emptyIterator();
} else if (unpackedPaths instanceof Map) {
final Iterator<? extends Map.Entry<?, ?>> iterator = ((Map<?, ?>) unpackedPaths).entrySet().iterator();
return new AbstractIterator<TaskOutputFilePropertySpec>() {
@Override
protected TaskOutputFilePropertySpec computeNext() {
if (iterator.hasNext()) {
Map.Entry<?, ?> entry = iterator.next();
Object key = entry.getKey();
if (key == null) {
throw new IllegalArgumentException(String.format("Mapped output property '%s' has null key", getPropertyName()));
}
String id = key.toString();
File file = resolver.resolve(entry.getValue());
return new CacheableTaskOutputCompositeFilePropertyElementSpec(CompositeTaskOutputPropertySpec.this, "." + id, file);
}
return endOfData();
}
};
} else {
return Iterators.<TaskOutputFilePropertySpec>singletonIterator(
new NonCacheableTaskOutputPropertySpec(taskName, this, resolver, unpackedPaths)
);
}
}
}