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/*
* Copyright (C) 2010 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.voicedialer;
import android.util.Log;
import android.content.Intent;
import android.speech.srec.Recognizer;
import java.io.IOException;
import java.util.ArrayList;
public class PhoneTypeChoiceRecognizerEngine extends RecognizerEngine {
/**
* Constructor.
*/
public PhoneTypeChoiceRecognizerEngine() {
}
protected void setupGrammar() throws IOException, InterruptedException {
if (mSrecGrammar == null) {
if (false) Log.d(TAG, "start new Grammar");
mSrecGrammar = mSrec.new Grammar(SREC_DIR + "/grammars/phone_type_choice.g2g");
mSrecGrammar.setupRecognizer();
}
}
/**
* Called when recognition succeeds. It receives a list
* of results, builds a corresponding list of Intents, and
* passes them to the {@link RecognizerClient}, which selects and
* performs a corresponding action.
* @param recognizerClient the client that will be sent the results
*/
protected void onRecognitionSuccess(RecognizerClient recognizerClient) throws InterruptedException {
if (false) Log.d(TAG, "onRecognitionSuccess " + mSrec.getResultCount());
if (mLogger != null) mLogger.logNbestHeader();
ArrayList<Intent> intents = new ArrayList<Intent>();
for (int result = 0; result < mSrec.getResultCount() &&
intents.size() < RESULT_LIMIT; result++) {
// parse the semanticMeaning string and build an Intent
String conf = mSrec.getResult(result, Recognizer.KEY_CONFIDENCE);
String literal = mSrec.getResult(result, Recognizer.KEY_LITERAL);
String semantic = mSrec.getResult(result, Recognizer.KEY_MEANING);
String msg = "conf=" + conf + " lit=" + literal + " sem=" + semantic;
if (false) Log.d(TAG, msg);
}
// we only pay attention to the first result.
if (mSrec.getResultCount() > 0) {
// parse the semanticMeaning string and build an Intent
String conf = mSrec.getResult(0, Recognizer.KEY_CONFIDENCE);
String literal = mSrec.getResult(0, Recognizer.KEY_LITERAL);
String semantic = mSrec.getResult(0, Recognizer.KEY_MEANING);
String msg = "conf=" + conf + " lit=" + literal + " sem=" + semantic;
if (false) Log.d(TAG, msg);
if (mLogger != null) mLogger.logLine(msg);
if (("H".equalsIgnoreCase(semantic)) ||
("M".equalsIgnoreCase(semantic)) ||
("W".equalsIgnoreCase(semantic)) ||
("O".equalsIgnoreCase(semantic)) ||
("R".equalsIgnoreCase(semantic)) ||
("X".equalsIgnoreCase(semantic))) {
if (false) Log.d(TAG, " got valid response");
Intent intent = new Intent(RecognizerEngine.ACTION_RECOGNIZER_RESULT, null);
intent.putExtra(RecognizerEngine.SENTENCE_EXTRA, literal);
intent.putExtra(RecognizerEngine.SEMANTIC_EXTRA, semantic);
addIntent(intents, intent);
} else {
// Anything besides yes or no is a failure.
}
}
// log if requested
if (mLogger != null) mLogger.logIntents(intents);
// bail out if cancelled
if (Thread.interrupted()) throw new InterruptedException();
if (intents.size() == 0) {
if (false) Log.d(TAG, " no intents");
recognizerClient.onRecognitionFailure("No Intents generated");
}
else {
if (false) Log.d(TAG, " success");
recognizerClient.onRecognitionSuccess(
intents.toArray(new Intent[intents.size()]));
}
}
}
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