/*
* 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.transfer;
import org.gradle.api.Action;
import org.gradle.api.Nullable;
import org.gradle.api.Transformer;
import org.gradle.internal.resource.ExternalResource;
import org.gradle.internal.resource.metadata.ExternalResourceMetaData;
import org.gradle.internal.hash.HashValue;
import org.gradle.logging.ProgressLoggerFactory;
import java.io.*;
import java.net.URI;
public class ProgressLoggingExternalResourceAccessor extends AbstractProgressLoggingHandler implements ExternalResourceAccessor {
private final ExternalResourceAccessor delegate;
public ProgressLoggingExternalResourceAccessor(ExternalResourceAccessor delegate, ProgressLoggerFactory progressLoggerFactory) {
super(progressLoggerFactory);
this.delegate = delegate;
}
public ExternalResource getResource(URI location) throws IOException {
ExternalResource resource = delegate.getResource(location);
if (resource != null) {
return new ProgressLoggingExternalResource(resource);
} else {
return null;
}
}
@Nullable
public HashValue getResourceSha1(URI location) {
return delegate.getResourceSha1(location);
}
@Nullable
public ExternalResourceMetaData getMetaData(URI location) throws IOException {
return delegate.getMetaData(location);
}
private class ProgressLoggingExternalResource implements ExternalResource {
private ExternalResource resource;
private ProgressLoggingExternalResource(ExternalResource resource) {
this.resource = resource;
}
/**
* This redirect allows us to deprecate ExternalResource#writeto and replace usages later.
*/
public void writeTo(File destination) throws IOException {
FileOutputStream output = new FileOutputStream(destination);
try {
writeTo(output);
} finally {
output.close();
}
}
public void writeTo(OutputStream outputStream) throws IOException {
final ResourceOperation downloadOperation = createResourceOperation(resource.getName(), ResourceOperation.Type.download, getClass(), resource.getContentLength());
final ProgressLoggingOutputStream progressLoggingOutputStream = new ProgressLoggingOutputStream(outputStream, downloadOperation);
try {
resource.writeTo(progressLoggingOutputStream);
} finally {
downloadOperation.completed();
}
}
public void withContent(Action<? super InputStream> readAction) throws IOException {
resource.withContent(readAction);
}
public <T> T withContent(Transformer<? extends T, ? super InputStream> readAction) throws IOException {
return resource.withContent(readAction);
}
public void close() throws IOException {
resource.close();
}
@Nullable
public ExternalResourceMetaData getMetaData() {
return resource.getMetaData();
}
public URI getURI() {
return resource.getURI();
}
public String getName() {
return resource.getName();
}
public long getContentLength() {
return resource.getContentLength();
}
public boolean isLocal() {
return resource.isLocal();
}
public String toString(){
return resource.toString();
}
}
private class ProgressLoggingOutputStream extends OutputStream {
private OutputStream outputStream;
private final ResourceOperation resourceOperation;
public ProgressLoggingOutputStream(OutputStream outputStream, ResourceOperation resourceOperation) {
this.outputStream = outputStream;
this.resourceOperation = resourceOperation;
}
@Override
public void flush() throws IOException {
outputStream.flush();
}
@Override
public void close() throws IOException {
outputStream.close();
}
@Override
public void write(int b) throws IOException {
outputStream.write(b);
resourceOperation.logProcessedBytes(1l);
}
public void write(byte b[], int off, int len) throws IOException {
outputStream.write(b, off, len);
resourceOperation.logProcessedBytes(len);
}
}
}