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A thundr module enabling thundr for use on GAE (Google App Engine)
There is a newer version: 3.0.0
/*
 * This file is a component of thundr, a software library from 3wks.
 * Read more: http://3wks.github.io/thundr/
 * Copyright (C) 2015 3wks, 
 *
 * 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.threewks.thundr.search.gae;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import com.atomicleopard.expressive.Expressive;
import com.threewks.thundr.search.IndexOperation;
import com.threewks.thundr.search.SearchException;
import com.threewks.thundr.search.TextSearchService;
import com.threewks.thundr.search.gae.naming.DefaultIndexNamingStrategy;
import com.threewks.thundr.search.gae.naming.IndexNamingStrategy;

/**
 * An implementation of {@link TextSearchService} which uses Appengine's Full Text Search Api
 * 
 * @param 
 * @param 
 */
public class GaeSearchService extends BaseGaeSearchService implements TextSearchService, SearchExecutor> {

	/**
	 * Create a {@link GaeSearchService} for the given type using the {@link DefaultIndexNamingStrategy}.
	 * 
	 * @param type the type this search service will index
	 * @param searchConfig
	 */
	public GaeSearchService(Class type, SearchConfig searchConfig) {
		this(type, searchConfig, new DefaultIndexNamingStrategy());
	}

	/**
	 * Create a {@link GaeSearchService} for the given type using the given {@link IndexNamingStrategy}.
	 * 
	 * @param type
	 * @param searchConfig
	 * @param indexNamingStrategy
	 */
	public GaeSearchService(Class type, SearchConfig searchConfig, IndexNamingStrategy indexNamingStrategy) {
		super(type, searchConfig, indexNamingStrategy);
		if (!metadata.hasIndexableFields()) {
			throw new SearchException("Unable to create %s - the type %s has no indexable fields ", this.getClass().getSimpleName(), type.getSimpleName());
		}
	}

	@Override
	public IndexOperation index(T object) {
		K id = metadata.getId(object);
		return super.index(object, id);
	}

	@Override
	public IndexOperation index(Collection objects) {
		return super.index(objects);
	}

	@Override
	public IndexOperation removeById(K id) {
		return super.removeById(id);
	}

	@Override
	public IndexOperation removeById(Iterable ids) {
		return super.removeById(ids);
	}

	@Override
	public IndexOperation remove(T object) {
		K id = metadata.getId(object);
		return super.removeById(id);
	}

	@Override
	public IndexOperation remove(Iterable objects) {
		if (Expressive.isEmpty(objects)) {
			return new IndexOperation(null);
		}
		List ids = new ArrayList<>();
		for (T object : objects) {
			ids.add(metadata.getId(object));
		}
		return super.removeById(ids);
	}

	@Override
	public int removeAll() {
		return super.removeAll();
	}

	@Override
	public SearchImpl search() {
		return super.search();
	}
}