org.apache.abdera.protocol.client.util.DataSourceRequestEntity.java Source code

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Here is the source code for org.apache.abdera.protocol.client.util.DataSourceRequestEntity.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  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.  For additional information regarding
 * copyright in this work, please see the NOTICE file in the top level
 * directory of this distribution.
 */
package org.apache.abdera.protocol.client.util;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import javax.activation.DataHandler;
import javax.activation.DataSource;

import org.apache.commons.httpclient.methods.RequestEntity;

public class DataSourceRequestEntity implements RequestEntity {

    private final DataSource dataSource;

    public DataSourceRequestEntity(DataHandler dataHandler) {
        this(dataHandler.getDataSource());
    }

    public DataSourceRequestEntity(DataSource dataSource) {
        this.dataSource = dataSource;
    }

    public long getContentLength() {
        return -1;
    }

    public String getContentType() {
        return dataSource.getContentType();
    }

    public boolean isRepeatable() {
        return true;
    }

    public void writeRequest(OutputStream out) throws IOException {
        InputStream in = dataSource.getInputStream();
        byte[] buf = new byte[1024];
        int n = -1;
        while ((n = in.read(buf, 0, 1024)) != -1) {
            out.write(buf, 0, n);
            out.flush();
        }
    }

}