Author: mattmann
Date: Mon Jul 7 23:20:53 2014
New Revision: 1608628
URL: http://svn.apache.org/r1608628
Log:
- fix for TIKA-1362: Add GoogleTranslate implementation of Translation API
Added:
tika/trunk/tika-translate/src/main/java/org/apache/tika/language/translate/GoogleTranslator.java
tika/trunk/tika-translate/src/main/resources/org/apache/tika/language/translate/translator.google.properties
tika/trunk/tika-translate/src/test/java/org/apache/tika/language/translate/GoogleTranslatorTest.java
Modified:
tika/trunk/tika-translate/pom.xml
Modified: tika/trunk/tika-translate/pom.xml
URL:
http://svn.apache.org/viewvc/tika/trunk/tika-translate/pom.xml?rev=1608628&r1=1608627&r2=1608628&view=diff
==============================================================================
--- tika/trunk/tika-translate/pom.xml (original)
+++ tika/trunk/tika-translate/pom.xml Mon Jul 7 23:20:53 2014
@@ -46,6 +46,16 @@
<version>0.6.2</version>
<type>jar</type>
</dependency>
+ <dependency>
+ <groupId>org.apache.cxf</groupId>
+ <artifactId>cxf-rt-frontend-jaxrs</artifactId>
+ <version>2.7.8</version>
+ </dependency>
+ <dependency>
+ <groupId>com.fasterxml.jackson.jaxrs</groupId>
+ <artifactId>jackson-jaxrs-json-provider</artifactId>
+ <version>2.4.0</version>
+ </dependency>
<!-- Test dependencies -->
<dependency>
Added:
tika/trunk/tika-translate/src/main/java/org/apache/tika/language/translate/GoogleTranslator.java
URL:
http://svn.apache.org/viewvc/tika/trunk/tika-translate/src/main/java/org/apache/tika/language/translate/GoogleTranslator.java?rev=1608628&view=auto
==============================================================================
---
tika/trunk/tika-translate/src/main/java/org/apache/tika/language/translate/GoogleTranslator.java
(added)
+++
tika/trunk/tika-translate/src/main/java/org/apache/tika/language/translate/GoogleTranslator.java
Mon Jul 7 23:20:53 2014
@@ -0,0 +1,116 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.tika.language.translate;
+
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.Properties;
+import java.util.logging.Logger;
+
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import org.apache.cxf.jaxrs.client.WebClient;
+import org.apache.tika.language.LanguageIdentifier;
+import org.apache.tika.language.LanguageProfile;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+/**
+ * An implementation of a REST client to the <a
+ * href="https://www.googleapis.com/language/translate/v2";>Google Translate v2
+ * API</a>. Based on the <a
+ * href="http://hayageek.com/google-translate-api-tutorial/";>great tutorial</a>
+ * from <a href="http://hayageek.com";>hayageek.com</a>. Set your API key in
+ * translator.google.properties.
+ *
+ *
+ */
+public class GoogleTranslator implements Translator {
+
+ private static final String GOOGLE_TRANSLATE_URL_BASE =
"https://www.googleapis.com/language/translate/v2";;
+
+ private static final String DEFAULT_KEY = "dummy-secret";
+
+ private static final Logger LOG =
Logger.getLogger(GoogleTranslator.class
+ .getName());
+
+ private WebClient client;
+
+ private String apiKey;
+
+ private boolean isAvailable;
+
+ public GoogleTranslator() {
+ this.client = WebClient.create(GOOGLE_TRANSLATE_URL_BASE);
+ this.isAvailable = true;
+ Properties config = new Properties();
+ try {
+ config.load(GoogleTranslator.class
+ .getClassLoader()
+ .getResourceAsStream(
+
"org/apache/tika/language/translate/translator.google.properties"));
+ this.apiKey =
config.getProperty("translator.client-secret");
+ if (this.apiKey.equals(DEFAULT_KEY))
+ this.isAvailable = false;
+ } catch (Exception e) {
+ e.printStackTrace();
+ isAvailable = false;
+ }
+ }
+
+ @Override
+ public String translate(String text, String sourceLanguage,
+ String targetLanguage) throws Exception {
+ if (!this.isAvailable)
+ return text;
+ Response response = client.accept(MediaType.APPLICATION_JSON)
+ .query("key", apiKey).query("source",
sourceLanguage)
+ .query("target", targetLanguage).query("q",
text).get();
+ BufferedReader reader = new BufferedReader(new
InputStreamReader(
+ (InputStream) response.getEntity()));
+ String line = null;
+ StringBuffer responseText = new StringBuffer();
+ while ((line = reader.readLine()) != null) {
+ responseText.append(line);
+ }
+
+ ObjectMapper mapper = new ObjectMapper();
+ JsonNode jsonResp = mapper.readTree(responseText.toString());
+ return jsonResp.findValuesAsText("translatedText").get(0);
+ }
+
+ @Override
+ public String translate(String text, String targetLanguage)
+ throws Exception {
+ if (!this.isAvailable)
+ return text;
+ LanguageIdentifier language = new LanguageIdentifier(
+ new LanguageProfile(text));
+ String sourceLanguage = language.getLanguage();
+ return translate(text, sourceLanguage, targetLanguage);
+ }
+
+ @Override
+ public boolean isAvailable() {
+ return this.isAvailable;
+ }
+
+}
Added:
tika/trunk/tika-translate/src/main/resources/org/apache/tika/language/translate/translator.google.properties
URL:
http://svn.apache.org/viewvc/tika/trunk/tika-translate/src/main/resources/org/apache/tika/language/translate/translator.google.properties?rev=1608628&view=auto
==============================================================================
---
tika/trunk/tika-translate/src/main/resources/org/apache/tika/language/translate/translator.google.properties
(added)
+++
tika/trunk/tika-translate/src/main/resources/org/apache/tika/language/translate/translator.google.properties
Mon Jul 7 23:20:53 2014
@@ -0,0 +1,25 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+# Must set the client keys in this file to use translation. Please see
+# https://code.google.com/p/microsoft-translator-java-api/ and
+# http://msdn.microsoft.com/en-us/library/hh454950.aspx for help with
+# getting these keys. As of now (6/2014) 2,000,000 characters/month
+# are free.
+#
+# To use the Google translation service, you <em>must</em> set your API-key
+# as described in GoogleTranslator. If you do not want translation
+# please set the value to "dummy-secret".
+
+translator.client-secret=dummy-secret
Added:
tika/trunk/tika-translate/src/test/java/org/apache/tika/language/translate/GoogleTranslatorTest.java
URL:
http://svn.apache.org/viewvc/tika/trunk/tika-translate/src/test/java/org/apache/tika/language/translate/GoogleTranslatorTest.java?rev=1608628&view=auto
==============================================================================
---
tika/trunk/tika-translate/src/test/java/org/apache/tika/language/translate/GoogleTranslatorTest.java
(added)
+++
tika/trunk/tika-translate/src/test/java/org/apache/tika/language/translate/GoogleTranslatorTest.java
Mon Jul 7 23:20:53 2014
@@ -0,0 +1,80 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.tika.language.translate;
+
+import org.junit.Before;
+
+import junit.framework.TestCase;
+
+/**
+ * Test harness for the {@link GoogleTranslator}.
+ *
+ */
+public class GoogleTranslatorTest extends TestCase {
+
+ private GoogleTranslator translator;
+
+ public GoogleTranslatorTest() {
+
+ }
+
+ @Before
+ public void setUp() {
+ translator = new GoogleTranslator();
+ }
+
+ public void testSimpleTranslate() {
+ String source = "hola senor";
+ String expected = "hello sir";
+
+ String result = null;
+ if (translator.isAvailable()) {
+ try {
+ result = translator.translate(source, "es",
"en");
+ assertNotNull(result);
+ assertEquals("Result: [" + result
+ + "]: not equal to expected: ["
+ expected + "]",
+ expected, result);
+ } catch (Exception e) {
+ e.printStackTrace();
+ fail(e.getMessage());
+ }
+ }
+ }
+
+ public void testTranslateGuessLanguage() {
+ String source = "bonjour comment vas-tu";
+ String expected = "hello how are you";
+
+ String result = null;
+ if (translator.isAvailable()) {
+ try {
+ result = translator.translate(source, "en");
+ assertNotNull(result);
+ assertEquals("Result: [" + result
+ + "]: not equal to expected: ["
+ expected + "]",
+ expected, result);
+ } catch (Exception e) {
+ e.printStackTrace();
+ fail(e.getMessage());
+ }
+ }
+
+ }
+
+}
