/*
* Copyright 2012 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.internal.resource.transport.file;
import org.apache.commons.io.IOUtils;
import org.gradle.internal.resource.local.DefaultLocallyAvailableExternalResource;
import org.gradle.internal.resource.ExternalResource;
import org.gradle.internal.resource.local.LocallyAvailableExternalResource;
import org.gradle.internal.resource.local.DefaultLocallyAvailableResource;
import org.gradle.internal.resource.local.LocalResource;
import org.gradle.internal.resource.metadata.ExternalResourceMetaData;
import org.gradle.internal.resource.transport.ExternalResourceRepository;
import org.gradle.util.GFileUtils;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.util.Arrays;
import java.util.List;
public class FileResourceConnector implements ExternalResourceRepository {
@Override
public ExternalResourceRepository withProgressLogging() {
return this;
}
public List<String> list(URI parent) {
File dir = getFile(parent);
if (dir.exists() && dir.isDirectory()) {
String[] names = dir.list();
if (names != null) {
return Arrays.asList(names);
}
}
return null;
}
@Override
public void put(LocalResource source, URI destination) throws IOException {
File target = getFile(destination);
if (!target.canWrite()) {
target.delete();
} // if target is writable, the copy will overwrite it without requiring a delete
GFileUtils.mkdirs(target.getParentFile());
InputStream input = source.open();
try {
FileOutputStream output = new FileOutputStream(target);
try {
IOUtils.copyLarge(input, output);
} finally {
output.close();
}
} finally {
input.close();
}
}
public LocallyAvailableExternalResource getResource(URI uri, boolean revalidate) {
File localFile = getFile(uri);
if (!localFile.exists()) {
return null;
}
return new DefaultLocallyAvailableExternalResource(uri, new DefaultLocallyAvailableResource(localFile));
}
public ExternalResourceMetaData getResourceMetaData(URI location, boolean revalidate) {
ExternalResource resource = getResource(location, revalidate);
return resource == null ? null : resource.getMetaData();
}
private static File getFile(URI uri) {
return new File(uri);
}
}