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/*******************************************************************************
* Copyright (c) 2009, 2013 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.data;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
/**
* Convenience utility for loading *.exec files into a
* {@link ExecutionDataStore} and a {@link SessionInfoStore}.
*/
public class ExecFileLoader {
private final SessionInfoStore sessionInfos;
private final ExecutionDataStore executionData;
/**
* New instance to combine session infos and execution data from multiple
* files.
*/
public ExecFileLoader() {
sessionInfos = new SessionInfoStore();
executionData = new ExecutionDataStore();
}
/**
* Reads all data from given input stream.
*
* @param stream
* Stream to read data from
* @throws IOException
* in case of problems while reading from the stream
*/
public void load(final InputStream stream) throws IOException {
final ExecutionDataReader reader = new ExecutionDataReader(
new BufferedInputStream(stream));
reader.setExecutionDataVisitor(executionData);
reader.setSessionInfoVisitor(sessionInfos);
reader.read();
}
/**
* Reads all data from given input stream.
*
* @param file
* file to read data from
* @throws IOException
* in case of problems while reading from the stream
*/
public void load(final File file) throws IOException {
final InputStream stream = new FileInputStream(file);
try {
load(stream);
} finally {
stream.close();
}
}
/**
* Saves the current content into the given output stream.
*
* @param stream
* stream to save content to
* @throws IOException
* in case of problems while writing to the stream
*/
public void save(final OutputStream stream) throws IOException {
final ExecutionDataWriter dataWriter = new ExecutionDataWriter(stream);
sessionInfos.accept(dataWriter);
executionData.accept(dataWriter);
}
/**
* Saves the current content into the given file.
*
* @param file
* file to save content to
* @param append
* <code>true</code> if the content should be appended, otherwise
* the file is overwritten.
* @throws IOException
* in case of problems while writing to the stream
*/
public void save(final File file, final boolean append) throws IOException {
final OutputStream stream = new BufferedOutputStream(
new FileOutputStream(file, append));
try {
save(stream);
} finally {
stream.close();
}
}
/**
* Returns the session info store with all loaded sessions.
*
* @return session info store
*/
public SessionInfoStore getSessionInfoStore() {
return sessionInfos;
}
/**
* Returns the execution data store with data for all loaded classes.
*
* @return execution data store
*/
public ExecutionDataStore getExecutionDataStore() {
return executionData;
}
}
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