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Camunda 7 Keycloak Identity Provider Plugin including all transitive dependencies
/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*
*/
package org.apache.hc.core5.http2.impl.io;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import org.apache.hc.core5.util.Args;
/**
* @since 5.0
*/
abstract class FrameOutputStream extends OutputStream {
private final OutputStream outputStream;
private final byte[] cache;
private int cachePosition;
public FrameOutputStream(final int minChunkSize, final OutputStream outputStream) {
super();
this.outputStream = Args.notNull(outputStream, "Output stream");
this.cache = new byte[minChunkSize];
}
protected abstract void write(final ByteBuffer src, final boolean endStream, final OutputStream outputStream) throws IOException;
private void flushCache(final boolean endStream) throws IOException {
if (this.cachePosition > 0) {
write(ByteBuffer.wrap(this.cache, 0, this.cachePosition), endStream, this.outputStream);
this.cachePosition = 0;
}
}
@Override
public void write(final int b) throws IOException {
this.cache[this.cachePosition] = (byte) b;
this.cachePosition++;
if (this.cachePosition == this.cache.length) {
flushCache(false);
}
}
@Override
public void write(final byte[] b) throws IOException {
write(b, 0, b.length);
}
@Override
public void write(final byte[] src, final int off, final int len) throws IOException {
if (len >= this.cache.length - this.cachePosition) {
flushCache(false);
write(ByteBuffer.wrap(src, off, len), false, this.outputStream);
} else {
System.arraycopy(src, off, cache, this.cachePosition, len);
this.cachePosition += len;
}
}
@Override
public void flush() throws IOException {
flushCache(false);
this.outputStream.flush();
}
@Override
public void close() throws IOException {
if (this.cachePosition > 0) {
flushCache(true);
} else {
write(null, true, this.outputStream);
}
flushCache(true);
this.outputStream.flush();
}
}