Added few more sample code for Search API. (#173)

* Moved some checkstyle modules to java-repo-tools
* Moved some lines in .gitignore to the top level

Author: Takashi Matsuo

.gitignore

@@ -30,3 +30,8 @@ service-account.json
 # intellij
 .idea/
 *.iml
+
+# Eclipse files
+.project
+.classpath
+.settings

appengine/search/.gitignore

@@ -81,22 +81,6 @@ Copyright 2015 Google Inc. All Rights Reserved.
     <!-- for hot reload of the web application -->
     <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
     <plugins>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-checkstyle-plugin</artifactId>
-        <version>2.17</version>
-        <configuration>
-          <configLocation>google-checks.xml</configLocation>
-          <consoleOutput>true</consoleOutput>
-          <failOnViolation>true</failOnViolation>
-          <failsOnError>true</failsOnError>
-          <includeTestSourceDirectory>true</includeTestSourceDirectory>
-          <suppressionsLocation>suppressions.xml</suppressionsLocation>
-        </configuration>
-        <executions>
-          <execution><goals><goal>check</goal></goals></execution>
-        </executions>
-      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <version>3.3</version>

appengine/search/google-checks.xml

@@ -23,13 +23,13 @@
 import com.google.appengine.api.search.GetResponse;
 // [END delete_import]
 
-//CHECKSTYLE:OFF
+// CHECKSTYLE:OFF
 import com.google.appengine.api.search.Field;
 import com.google.appengine.api.search.Index;
 import com.google.appengine.api.search.IndexSpec;
 import com.google.appengine.api.search.SearchServiceFactory;
 // @formatter:on
-//CHECKSTYLE:ON
+// CHECKSTYLE:ON
 
 import java.io.IOException;
 import java.io.PrintWriter;

appengine/search/pom.xml

@@ -23,13 +23,13 @@
 import com.google.appengine.api.search.IndexSpec;
 import com.google.appengine.api.search.SearchServiceFactory;
 
-//CHECKSTYLE:OFF
+// CHECKSTYLE:OFF
 // [START get_document_import]
 import com.google.appengine.api.search.GetRequest;
 import com.google.appengine.api.search.GetResponse;
 // [END get_document_import]
 // @formatter:on
-//CHECKSTYLE:ON
+// CHECKSTYLE:ON
 
 import java.io.IOException;
 import java.io.PrintWriter;

appengine/search/src/main/java/com/example/appengine/search/DeleteServlet.java

@@ -0,0 +1,81 @@
+/**
+ * Copyright 2016 Google Inc. All Rights Reserved.
+ *
+ * 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.example.appengine.search;
+
+import com.google.appengine.api.search.Document;
+import com.google.appengine.api.search.Field;
+import com.google.appengine.api.search.SearchServiceFactory;
+
+// @formatter:off
+// CHECKSTYLE:OFF
+// [START schema_import]
+import com.google.appengine.api.search.Field.FieldType;
+import com.google.appengine.api.search.Index;
+import com.google.appengine.api.search.GetIndexesRequest;
+import com.google.appengine.api.search.GetResponse;
+import com.google.appengine.api.search.Schema;
+// [END schema_import]
+// @formatter:on
+// CHECKSTYLE:ON
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.List;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+
+@SuppressWarnings("serial")
+public class SchemaServlet extends HttpServlet {
+
+  private static final String SEARCH_INDEX = "schemaIndex";
+
+  @Override
+  public void doGet(HttpServletRequest req, HttpServletResponse resp)
+      throws IOException {
+    PrintWriter out = resp.getWriter();
+    Document doc = Document.newBuilder()
+        .setId("theOnlyCar")
+        .addField(Field.newBuilder().setName("maker").setText("Toyota"))
+        .addField(Field.newBuilder().setName("price").setNumber(300000))
+        .addField(Field.newBuilder().setName("color").setText("lightblue"))
+        .addField(Field.newBuilder().setName("model").setText("Prius"))
+        .build();
+    try {
+      Utils.indexADocument(SEARCH_INDEX, doc);
+    } catch (InterruptedException e) {
+      // ignore
+    }
+    // [START list_schema]
+    GetResponse<Index> response = SearchServiceFactory.getSearchService().getIndexes(
+        GetIndexesRequest.newBuilder().setSchemaFetched(true).build());
+
+    // List out elements of each Schema
+    for (Index index : response) {
+      Schema schema = index.getSchema();
+      for (String fieldName : schema.getFieldNames()) {
+        List<FieldType> typesForField = schema.getFieldTypes(fieldName);
+        // Just printing out the field names and types
+        for (FieldType type : typesForField) {
+          out.println(index.getName() + ":" + fieldName + ":" + type.name());
+        }
+      }
+    }
+    // [START list_schema]
+  }
+}