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/**
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* Copyright: 2010 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat.restservice;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import javax.activation.DataSource;
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/**
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* Encapsulate an InputStream within a DataSource interface so that it is
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* accessible to MIME processors.
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*
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* @author Matthew Jones
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*/
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public class InputStreamDataSource implements DataSource {
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private String name;
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private InputStream stream;
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private boolean readOnce;
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public InputStreamDataSource(String name, InputStream stream) {
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super();
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this.name = name;
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this.stream = stream;
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this.readOnce = false;
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}
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public String getContentType() {
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return "application/octet-stream";
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}
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public InputStream getInputStream() throws IOException {
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if (readOnce) {
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throw new IOException("Only call getInputStream() once.");
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}
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readOnce = true;
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return stream;
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}
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public String getName() {
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return this.name;
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}
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public OutputStream getOutputStream() throws IOException {
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throw new IOException("Can't get an OutputStream from an InputStreamDataSource.");
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}
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}
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