| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php |
| * |
| * 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.ide.eclipse.ndk.internal.templates; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Map; |
| |
| /** |
| * Reads from a template substituting marked values from the supplied Map. |
| */ |
| public class TemplatedInputStream extends InputStream { |
| |
| private final InputStream mIn; |
| private final Map<String, String> mMap; |
| private char[] mSub; |
| private int mPos; |
| private int mMark; |
| |
| public TemplatedInputStream(InputStream in, Map<String, String> map) { |
| this.mIn = in; |
| this.mMap = map; |
| } |
| |
| @Override |
| public int read() throws IOException { |
| // if from a mark, return the char |
| if (mMark != 0) { |
| int c = mMark; |
| mMark = 0; |
| return c; |
| } |
| |
| // return char from sub layer if available |
| if (mSub != null) { |
| char c = mSub[mPos++]; |
| if (mPos >= mSub.length) |
| mSub = null; |
| return c; |
| } |
| |
| int c = mIn.read(); |
| if (c == '%') { |
| // check if it's a sub |
| c = mIn.read(); |
| if (c == '{') { |
| // it's a sub |
| StringBuffer buff = new StringBuffer(); |
| for (c = mIn.read(); c != '}' && c >= 0; c = mIn.read()) |
| buff.append((char) c); |
| String str = mMap.get(buff.toString()); |
| if (str != null) { |
| mSub = str.toCharArray(); |
| mPos = 0; |
| } |
| return read(); // recurse to get the real char |
| } else { |
| // not a sub |
| mMark = c; |
| return '%'; |
| } |
| } |
| |
| return c; |
| } |
| |
| @Override |
| public void close() throws IOException { |
| super.close(); |
| mIn.close(); |
| } |
| |
| } |