StringDataSource.java #1

import java.io.*;
import javax.activation.*;

/**
 * Implements a <code>DataSource</code> from a <code>String</code>.
 */
public class StringDataSource implements DataSource {
  private final static String ENCODING = "iso-8859-1";
  private final static String TYPE = "text/plain";
  private String encoding = ENCODING;
  private String type = TYPE;
  private byte[] data;

  /* Create a DataSource from a String */
  public StringDataSource(String data) {
    this(data, TYPE, ENCODING);
  }

  /* Create a DataSource from a String */
  public StringDataSource(String data, String type) {
    this(data, type, ENCODING);
  }

  /* Create a DataSource from a String */
  public StringDataSource(String data, String type, String encoding) {
    this.encoding = encoding;
    this.type = type;
    try {
      this.data = data.getBytes(this.encoding);
    } catch (UnsupportedEncodingException uex) { }
  }

  /**
   * Return an <code>InputStream</code> for the data.
   */
  public InputStream getInputStream() throws IOException {
    if (data == null) throw new IOException("No data");
    return new ByteArrayInputStream(data);
  }

  /**
   * Required to implement <code>DataSource</code>, but invalid. This will
   * always throw an <code>IOException</code>.
   */
  public OutputStream getOutputStream() throws IOException {
    throw new IOException("invalid");
  }

  public String getContentType() {
    return this.type;
  }

  public void setContentType(String type) {
    this.type = type;
  }

  public String getEncoding() {
    return this.encoding;
  }

  public void setEncoding(String encoding) {
    this.encoding = encoding;
  }

  public String getName() {
    return "string data";
  }
}