org.eclipse.persistence.internal.oxm.ByteArrayDataSource Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of eclipselink Show documentation

EclipseLink build based upon Git transaction f2b9fc5

There is a newer version: 5.0.0-B03

/*
 * Copyright (c) 1998, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.internal.oxm;

import javax.activation.DataSource;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStreamReader;

/**
 * INTERNAL:
 * @author  mmacivor
 */

public class ByteArrayDataSource implements DataSource {
    String contentType;
    byte[] bytes;

    public ByteArrayDataSource(byte[] data, String mimeType) {
        this.contentType = mimeType;
        bytes = data;
    }

    public String getName() {
        return "";
    }

    public java.io.OutputStream getOutputStream() {
        return new ByteArrayOutputStream(bytes.length);
    }

    public java.io.InputStream getInputStream() {
        return new ByteArrayInputStream(bytes);
    }

    public String getContentType() {
        if(contentType.startsWith("multipart") && contentType.indexOf("boundary") == -1) {
            //parse the bytes for the header and extract the boundary. Add it into the content type.
            StringBuilder buffer = new StringBuilder();
            InputStreamReader reader = new InputStreamReader(new ByteArrayInputStream(bytes));
            while(true) {
                try {
                    int next = reader.read();
                    if(next == -1) {
                        break;
                    } else if(((char)next) == '\n') {
                        if(!(buffer.length() == 0)) {
                            break;
                        }
                    } else {
                        buffer.append((char)next);
                    }
                } catch(Exception ex) {}
            }
            //buffer should contain the header string here.
            int index = buffer.indexOf("boundary");
            if(index != -1) {
                contentType += ";" + buffer.substring(index);
            }
        }
        return contentType;
    }
}