| /* |
| * Copyright (C) 2016 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.android.bluetooth.pbapclient; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.obex.HeaderSet; |
| |
| public final class ObexAppParameters { |
| |
| private final HashMap<Byte, byte[]> mParams; |
| |
| public ObexAppParameters() { |
| mParams = new HashMap<Byte, byte[]>(); |
| } |
| |
| public ObexAppParameters(byte[] raw) { |
| mParams = new HashMap<Byte, byte[]>(); |
| |
| if (raw != null) { |
| for (int i = 0; i < raw.length; ) { |
| if (raw.length - i < 2) { |
| break; |
| } |
| |
| byte tag = raw[i++]; |
| byte len = raw[i++]; |
| |
| if (raw.length - i - len < 0) { |
| break; |
| } |
| |
| byte[] val = new byte[len]; |
| |
| System.arraycopy(raw, i, val, 0, len); |
| this.add(tag, val); |
| |
| i += len; |
| } |
| } |
| } |
| |
| public static ObexAppParameters fromHeaderSet(HeaderSet headerset) { |
| try { |
| byte[] raw = (byte[]) headerset.getHeader(HeaderSet.APPLICATION_PARAMETER); |
| return new ObexAppParameters(raw); |
| } catch (IOException e) { |
| // won't happen |
| } |
| |
| return null; |
| } |
| |
| public byte[] getHeader() { |
| int length = 0; |
| |
| for (Map.Entry<Byte, byte[]> entry : mParams.entrySet()) { |
| length += (entry.getValue().length + 2); |
| } |
| |
| byte[] ret = new byte[length]; |
| |
| int idx = 0; |
| for (Map.Entry<Byte, byte[]> entry : mParams.entrySet()) { |
| length = entry.getValue().length; |
| |
| ret[idx++] = entry.getKey(); |
| ret[idx++] = (byte) length; |
| System.arraycopy(entry.getValue(), 0, ret, idx, length); |
| idx += length; |
| } |
| |
| return ret; |
| } |
| |
| public void addToHeaderSet(HeaderSet headerset) { |
| if (mParams.size() > 0) { |
| headerset.setHeader(HeaderSet.APPLICATION_PARAMETER, getHeader()); |
| } |
| } |
| |
| public boolean exists(byte tag) { |
| return mParams.containsKey(tag); |
| } |
| |
| public void add(byte tag, byte val) { |
| byte[] bval = ByteBuffer.allocate(1).put(val).array(); |
| mParams.put(tag, bval); |
| } |
| |
| public void add(byte tag, short val) { |
| byte[] bval = ByteBuffer.allocate(2).putShort(val).array(); |
| mParams.put(tag, bval); |
| } |
| |
| public void add(byte tag, int val) { |
| byte[] bval = ByteBuffer.allocate(4).putInt(val).array(); |
| mParams.put(tag, bval); |
| } |
| |
| public void add(byte tag, long val) { |
| byte[] bval = ByteBuffer.allocate(8).putLong(val).array(); |
| mParams.put(tag, bval); |
| } |
| |
| public void add(byte tag, String val) { |
| byte[] bval = val.getBytes(); |
| mParams.put(tag, bval); |
| } |
| |
| public void add(byte tag, byte[] bval) { |
| mParams.put(tag, bval); |
| } |
| |
| public byte getByte(byte tag) { |
| byte[] bval = mParams.get(tag); |
| |
| if (bval == null || bval.length < 1) { |
| return 0; |
| } |
| |
| return ByteBuffer.wrap(bval).get(); |
| } |
| |
| public short getShort(byte tag) { |
| byte[] bval = mParams.get(tag); |
| |
| if (bval == null || bval.length < 2) { |
| return 0; |
| } |
| |
| return ByteBuffer.wrap(bval).getShort(); |
| } |
| |
| public int getInt(byte tag) { |
| byte[] bval = mParams.get(tag); |
| |
| if (bval == null || bval.length < 4) { |
| return 0; |
| } |
| |
| return ByteBuffer.wrap(bval).getInt(); |
| } |
| |
| public String getString(byte tag) { |
| byte[] bval = mParams.get(tag); |
| |
| if (bval == null) { |
| return null; |
| } |
| |
| return new String(bval); |
| } |
| |
| public byte[] getByteArray(byte tag) { |
| byte[] bval = mParams.get(tag); |
| |
| return bval; |
| } |
| |
| @Override |
| public String toString() { |
| return mParams.toString(); |
| } |
| } |