fish.payara.micro.boot.loader.data.ByteArrayRandomAccessData Maven / Gradle / Ivy
/*
* Copyright 2012-2013 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 fish.payara.micro.boot.loader.data;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
/**
* {@link RandomAccessData} implementation backed by a byte array.
*
* @author Phillip Webb
*/
public class ByteArrayRandomAccessData implements RandomAccessData {
private final byte[] bytes;
private final long offset;
private final long length;
public ByteArrayRandomAccessData(byte[] bytes) {
this(bytes, 0, (bytes == null ? 0 : bytes.length));
}
public ByteArrayRandomAccessData(byte[] bytes, long offset, long length) {
this.bytes = (bytes == null ? new byte[0] : bytes);
this.offset = offset;
this.length = length;
}
@Override
public InputStream getInputStream(ResourceAccess access) {
return new ByteArrayInputStream(this.bytes, (int) this.offset, (int) this.length);
}
@Override
public RandomAccessData getSubsection(long offset, long length) {
return new ByteArrayRandomAccessData(this.bytes, this.offset + offset, length);
}
@Override
public long getSize() {
return this.length;
}
}