org.ldp4j.application.sdk.QueryBuilder.java Source code

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Here is the source code for org.ldp4j.application.sdk.QueryBuilder.java

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/**
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   This file is part of the LDP4j Project:
 *     http://www.ldp4j.org/
 *
 *   Center for Open Middleware
 *     http://www.centeropenmiddleware.com/
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Copyright (C) 2014-2016 Center for Open Middleware.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   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.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Artifact    : org.ldp4j.framework:ldp4j-application-engine-sdk:0.2.1
 *   Bundle      : ldp4j-application-engine-sdk-0.2.1.jar
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 */
package org.ldp4j.application.sdk;

import static com.google.common.base.Preconditions.checkNotNull;

import java.util.Collection;
import java.util.Map;
import java.util.Map.Entry;

import org.ldp4j.application.ext.Query;

import com.google.common.collect.LinkedListMultimap;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.Maps;

public final class QueryBuilder {

    private final ListMultimap<String, Object> parameters;

    private QueryBuilder() {
        this.parameters = LinkedListMultimap.create();
    }

    public Query build() {
        final Map<String, ImmutableQueryParameter> parameterMap = Maps.newLinkedHashMap();
        for (Entry<String, Collection<Object>> entry : this.parameters.asMap().entrySet()) {
            String name = entry.getKey();
            Collection<Object> rawValues = entry.getValue();
            parameterMap.put(name, ImmutableQueryParameter.create(name, rawValues));
        }
        return ImmutableQuery.create(parameterMap);
    }

    public QueryBuilder withParameter(String name, Object rawValue) {
        checkNotNull(name, "Parameter name cannot be null");
        checkNotNull(rawValue, "Parameter value cannot be null");
        this.parameters.put(name, rawValue);
        return this;
    }

    public static QueryBuilder newInstance() {
        return new QueryBuilder();
    }

}