Android Open Source - acs-android-sdk C C Multipart Entity

• Back to Development/sdk  ↑

From Project

Back to project page acs-android-sdk.

License

The source code is released under:

Apache License

Java Source Code

package com.appcelerator.cloud.sdk;
/*from  ww  w. ja  v a2s  .  c o  m*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Random;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.message.BasicHeader;

/*
 * Rewrite the MultipartEntity class to send a request with self-constructed body content.
 */
public class CCMultipartEntity implements HttpEntity {

  private final char[] MULTIPART_CHARS = "-_1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".toCharArray();

  private String boundary = null;

  ByteArrayOutputStream out = new ByteArrayOutputStream();
  boolean isSetLast = false;
  boolean isSetFirst = false;

  public CCMultipartEntity() {
    final StringBuffer buf = new StringBuffer();
    final Random rand = new Random();
    for (int i = 0; i < 30; i++) {
      buf.append(MULTIPART_CHARS[rand.nextInt(MULTIPART_CHARS.length)]);
    }
    this.boundary = buf.toString();
  }

  public void addPart(String name, FileBody fileBody) {
    try {
      this.addPart(name, fileBody.getFile().getName(), new FileInputStream(fileBody.getFile()), fileBody.getMimeType());
    } catch (FileNotFoundException e) {
      e.printStackTrace();
    }
  }

  public void writeFirstBoundaryIfNeeds() {
    if (!isSetFirst) {
      try {
        out.write(("--" + boundary + "\r\n").getBytes());
      } catch (final IOException e) {
        System.out.println(e.getLocalizedMessage());
        // Log.e(Constants.TAG, e.getMessage(), e);
      }
    }
    isSetFirst = true;
  }

  public void writeLastBoundaryIfNeeds() {
    if (isSetLast) {
      return;
    }
    try {
      out.write(("\r\n--" + boundary + "--\r\n").getBytes());
    } catch (final IOException e) {
      System.out.println(e.getLocalizedMessage());
    }
    isSetLast = true;
  }

  public void addPart(final String key, final String value) {
    writeFirstBoundaryIfNeeds();
    try {
      out.write(("Content-Disposition: form-data; name=\"" + key + "\"\r\n\r\n").getBytes());
      out.write(value.getBytes());
      out.write(("\r\n--" + boundary + "\r\n").getBytes());
    } catch (final IOException e) {
      System.out.println(e.getLocalizedMessage());
    }
  }

  public void addPart(final String key, final String fileName, final InputStream fin) {
    addPart(key, fileName, fin, "application/octet-stream");
  }

  public void addPart(final String key, final String fileName, final InputStream fin, String type) {
    writeFirstBoundaryIfNeeds();
    try {
      type = "Content-Type: " + type + "\r\n";
      out.write(("Content-Disposition: form-data; name=\"" + key + "\"; filename=\"" + fileName + "\"\r\n").getBytes());
      out.write(type.getBytes());
      out.write("Content-Transfer-Encoding: binary\r\n\r\n".getBytes());

      final byte[] tmp = new byte[4096];
      int l = 0;
      while ((l = fin.read(tmp)) != -1) {
        out.write(tmp, 0, l);
      }
      out.flush();
    } catch (final IOException e) {
      System.out.println(e.getLocalizedMessage());
    } finally {
      try {
        fin.close();
      } catch (final IOException e) {
        System.out.println(e.getLocalizedMessage());
      }
    }
  }

  public void addPart(final String key, final File value) {
    try {
      addPart(key, value.getName(), new FileInputStream(value));
    } catch (final FileNotFoundException e) {
      System.out.println(e.getLocalizedMessage());
    }
  }

  public long getContentLength() {
    writeLastBoundaryIfNeeds();
    return out.toByteArray().length;
  }

  public Header getContentType() {
    return new BasicHeader("Content-Type", "multipart/form-data; boundary=" + boundary);
  }

  public boolean isChunked() {
    return false;
  }

  public boolean isRepeatable() {
    return false;
  }

  public boolean isStreaming() {
    return false;
  }

  public void writeTo(final OutputStream outstream) throws IOException {
    outstream.write(out.toByteArray());
  }

  public Header getContentEncoding() {
    return null;
  }

  public void consumeContent() throws IOException, UnsupportedOperationException {
    if (isStreaming()) {
      throw new UnsupportedOperationException("Streaming entity does not implement #consumeContent()");
    }
  }

  public InputStream getContent() throws IOException, UnsupportedOperationException {
    return new ByteArrayInputStream(out.toByteArray());
  }
}

Java Source Code List

• Back to Development/sdk  ↑