/*
* ModeShape (http://www.modeshape.org)
*
* 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.modeshape.jcr;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.security.NoSuchAlgorithmException;
import org.modeshape.common.util.IoUtil;
import org.modeshape.common.util.SecureHash;
import org.modeshape.common.util.StringUtil;
import org.modeshape.jcr.api.Binary;
/**
* An in-memory implementation of a {@link javax.jcr.Binary} which should used for tests.
*
* @author Horia Chiorean
*/
public final class InMemoryTestBinary implements Binary {
private byte[] bytes;
private byte[] hash;
public InMemoryTestBinary( byte[] bytes ) {
try {
this.bytes = bytes;
this.hash = SecureHash.getHash(SecureHash.Algorithm.SHA_1, bytes);
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
}
}
public InMemoryTestBinary( InputStream is ) throws IOException {
this(IoUtil.readBytes(is));
}
@Override
public void dispose() {
this.bytes = null;
}
@Override
public InputStream getStream() {
return new ByteArrayInputStream(bytes);
}
@Override
public int read( byte[] b,
long position ) throws IOException {
if (getSize() <= position) {
return -1;
}
InputStream stream = null;
IOException error = null;
try {
stream = getStream();
// Read/skip the next 'position' bytes ...
long skip = position;
while (skip > 0) {
long skipped = stream.skip(skip);
if (skipped <= 0) {
return -1;
}
skip -= skipped;
}
return stream.read(b);
} catch (IOException e) {
error = e;
throw e;
} finally {
if (stream != null) {
try {
stream.close();
} catch (IOException t) {
// Only throw if we've not already thrown an exception ...
if (error == null) {
throw t;
}
}
}
}
}
@Override
public long getSize() {
return bytes.length;
}
@Override
public byte[] getHash() {
return hash;
}
@Override
public String getHexHash() {
return StringUtil.getHexString(hash);
}
@Override
public String getMimeType() {
return null;
}
@Override
public String getMimeType( String name ) {
return null;
}
}