com.mycila.hc.io.OutputStreamContentProvider.groovy Maven / Gradle / Ivy

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/**
 * Copyright (C) 2013 Mycila ([email protected])
 *
 * 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 com.mycila.hc.io

import java.nio.ByteBuffer

/**
 * @author Mathieu Carbou ([email protected])
 * @date 2014-02-17
 */
class OutputStreamContentProvider extends OutputStream implements ContentProvider {

    protected final DeferredContentProvider deferredContentProvider

    OutputStreamContentProvider() {
        this(-1)
    }

    OutputStreamContentProvider(long length) {
        this.deferredContentProvider = new DeferredContentProvider(length, false)
    }

    @Override
    long getLength() { deferredContentProvider.length }

    @Override
    Iterator iterator() { deferredContentProvider.iterator() }

    @Override
    void close() throws IOException { deferredContentProvider.close() }

    @Override
    void write(int b) throws IOException {
        write([(byte) b] as byte[], 0, 1)
    }

    @Override
    void write(byte[] b, int off, int len) throws IOException {
        deferredContentProvider.offer(ByteBuffer.wrap(b, off, len))
    }
}