| /* |
| * Copyright (C) 2007-2008 Esmertec AG. |
| * Copyright (C) 2007-2008 The Android Open Source Project |
| * |
| * Licensed 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. |
| */ |
| |
| package com.google.android.mms.pdu; |
| |
| import android.util.Log; |
| |
| import dalvik.annotation.compat.UnsupportedAppUsage; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.UnsupportedEncodingException; |
| import java.util.ArrayList; |
| |
| /** |
| * Encoded-string-value = Text-string | Value-length Char-set Text-string |
| */ |
| public class EncodedStringValue implements Cloneable { |
| private static final String TAG = "EncodedStringValue"; |
| private static final boolean DEBUG = false; |
| private static final boolean LOCAL_LOGV = false; |
| |
| /** |
| * The Char-set value. |
| */ |
| private int mCharacterSet; |
| |
| /** |
| * The Text-string value. |
| */ |
| private byte[] mData; |
| |
| /** |
| * Constructor. |
| * |
| * @param charset the Char-set value |
| * @param data the Text-string value |
| * @throws NullPointerException if Text-string value is null. |
| */ |
| @UnsupportedAppUsage |
| public EncodedStringValue(int charset, byte[] data) { |
| // TODO: CharSet needs to be validated against MIBEnum. |
| if(null == data) { |
| throw new NullPointerException("EncodedStringValue: Text-string is null."); |
| } |
| |
| mCharacterSet = charset; |
| mData = new byte[data.length]; |
| System.arraycopy(data, 0, mData, 0, data.length); |
| } |
| |
| /** |
| * Constructor. |
| * |
| * @param data the Text-string value |
| * @throws NullPointerException if Text-string value is null. |
| */ |
| @UnsupportedAppUsage |
| public EncodedStringValue(byte[] data) { |
| this(CharacterSets.DEFAULT_CHARSET, data); |
| } |
| |
| @UnsupportedAppUsage |
| public EncodedStringValue(String data) { |
| try { |
| mData = data.getBytes(CharacterSets.DEFAULT_CHARSET_NAME); |
| mCharacterSet = CharacterSets.DEFAULT_CHARSET; |
| } catch (UnsupportedEncodingException e) { |
| Log.e(TAG, "Default encoding must be supported.", e); |
| } |
| } |
| |
| /** |
| * Get Char-set value. |
| * |
| * @return the value |
| */ |
| @UnsupportedAppUsage |
| public int getCharacterSet() { |
| return mCharacterSet; |
| } |
| |
| /** |
| * Set Char-set value. |
| * |
| * @param charset the Char-set value |
| */ |
| @UnsupportedAppUsage |
| public void setCharacterSet(int charset) { |
| // TODO: CharSet needs to be validated against MIBEnum. |
| mCharacterSet = charset; |
| } |
| |
| /** |
| * Get Text-string value. |
| * |
| * @return the value |
| */ |
| @UnsupportedAppUsage |
| public byte[] getTextString() { |
| byte[] byteArray = new byte[mData.length]; |
| |
| System.arraycopy(mData, 0, byteArray, 0, mData.length); |
| return byteArray; |
| } |
| |
| /** |
| * Set Text-string value. |
| * |
| * @param textString the Text-string value |
| * @throws NullPointerException if Text-string value is null. |
| */ |
| @UnsupportedAppUsage |
| public void setTextString(byte[] textString) { |
| if(null == textString) { |
| throw new NullPointerException("EncodedStringValue: Text-string is null."); |
| } |
| |
| mData = new byte[textString.length]; |
| System.arraycopy(textString, 0, mData, 0, textString.length); |
| } |
| |
| /** |
| * Convert this object to a {@link java.lang.String}. If the encoding of |
| * the EncodedStringValue is null or unsupported, it will be |
| * treated as iso-8859-1 encoding. |
| * |
| * @return The decoded String. |
| */ |
| @UnsupportedAppUsage |
| public String getString() { |
| if (CharacterSets.ANY_CHARSET == mCharacterSet) { |
| return new String(mData); // system default encoding. |
| } else { |
| try { |
| String name = CharacterSets.getMimeName(mCharacterSet); |
| return new String(mData, name); |
| } catch (UnsupportedEncodingException e) { |
| if (LOCAL_LOGV) { |
| Log.v(TAG, e.getMessage(), e); |
| } |
| try { |
| return new String(mData, CharacterSets.MIMENAME_ISO_8859_1); |
| } catch (UnsupportedEncodingException e2) { |
| return new String(mData); // system default encoding. |
| } |
| } |
| } |
| } |
| |
| /** |
| * Append to Text-string. |
| * |
| * @param textString the textString to append |
| * @throws NullPointerException if the text String is null |
| * or an IOException occurred. |
| */ |
| @UnsupportedAppUsage |
| public void appendTextString(byte[] textString) { |
| if(null == textString) { |
| throw new NullPointerException("Text-string is null."); |
| } |
| |
| if(null == mData) { |
| mData = new byte[textString.length]; |
| System.arraycopy(textString, 0, mData, 0, textString.length); |
| } else { |
| ByteArrayOutputStream newTextString = new ByteArrayOutputStream(); |
| try { |
| newTextString.write(mData); |
| newTextString.write(textString); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| throw new NullPointerException( |
| "appendTextString: failed when write a new Text-string"); |
| } |
| |
| mData = newTextString.toByteArray(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see java.lang.Object#clone() |
| */ |
| @Override |
| public Object clone() throws CloneNotSupportedException { |
| super.clone(); |
| int len = mData.length; |
| byte[] dstBytes = new byte[len]; |
| System.arraycopy(mData, 0, dstBytes, 0, len); |
| |
| try { |
| return new EncodedStringValue(mCharacterSet, dstBytes); |
| } catch (Exception e) { |
| Log.e(TAG, "failed to clone an EncodedStringValue: " + this); |
| e.printStackTrace(); |
| throw new CloneNotSupportedException(e.getMessage()); |
| } |
| } |
| |
| /** |
| * Split this encoded string around matches of the given pattern. |
| * |
| * @param pattern the delimiting pattern |
| * @return the array of encoded strings computed by splitting this encoded |
| * string around matches of the given pattern |
| */ |
| public EncodedStringValue[] split(String pattern) { |
| String[] temp = getString().split(pattern); |
| EncodedStringValue[] ret = new EncodedStringValue[temp.length]; |
| for (int i = 0; i < ret.length; ++i) { |
| try { |
| ret[i] = new EncodedStringValue(mCharacterSet, |
| temp[i].getBytes()); |
| } catch (NullPointerException e) { |
| // Can't arrive here |
| return null; |
| } |
| } |
| return ret; |
| } |
| |
| /** |
| * Extract an EncodedStringValue[] from a given String. |
| */ |
| @UnsupportedAppUsage |
| public static EncodedStringValue[] extract(String src) { |
| String[] values = src.split(";"); |
| |
| ArrayList<EncodedStringValue> list = new ArrayList<EncodedStringValue>(); |
| for (int i = 0; i < values.length; i++) { |
| if (values[i].length() > 0) { |
| list.add(new EncodedStringValue(values[i])); |
| } |
| } |
| |
| int len = list.size(); |
| if (len > 0) { |
| return list.toArray(new EncodedStringValue[len]); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Concatenate an EncodedStringValue[] into a single String. |
| */ |
| @UnsupportedAppUsage |
| public static String concat(EncodedStringValue[] addr) { |
| StringBuilder sb = new StringBuilder(); |
| int maxIndex = addr.length - 1; |
| for (int i = 0; i <= maxIndex; i++) { |
| sb.append(addr[i].getString()); |
| if (i < maxIndex) { |
| sb.append(";"); |
| } |
| } |
| |
| return sb.toString(); |
| } |
| |
| @UnsupportedAppUsage |
| public static EncodedStringValue copy(EncodedStringValue value) { |
| if (value == null) { |
| return null; |
| } |
| |
| return new EncodedStringValue(value.mCharacterSet, value.mData); |
| } |
| |
| @UnsupportedAppUsage |
| public static EncodedStringValue[] encodeStrings(String[] array) { |
| int count = array.length; |
| if (count > 0) { |
| EncodedStringValue[] encodedArray = new EncodedStringValue[count]; |
| for (int i = 0; i < count; i++) { |
| encodedArray[i] = new EncodedStringValue(array[i]); |
| } |
| return encodedArray; |
| } |
| return null; |
| } |
| } |