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The Drools and jBPM public API which is backwards compatible between releases.
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/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * 
 *      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.drools.impl.adapters;

import org.drools.definition.KnowledgeDefinition;
import org.kie.api.definition.rule.Query;

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

import static org.drools.impl.adapters.AdapterUtil.adaptKnowledgeType;

public class QueryAdapter implements org.drools.definition.rule.Query {

    private final Query delegate;

    public QueryAdapter(Query delegate) {
        this.delegate = delegate;
    }

    public String getPackageName() {
        return delegate.getPackageName();
    }

    public String getName() {
        return delegate.getName();
    }

    public Map getMetaData() {
        return delegate.getMetaData();
    }

    public Collection listMetaAttributes() {
        throw new UnsupportedOperationException("This operation is no longer supported");
    }

    @Override
    public Map getMetaAttributes() {
        throw new UnsupportedOperationException("This operation is no longer supported");
    }

    @Override
    public String getMetaAttribute(String key) {
        throw new UnsupportedOperationException("This operation is no longer supported");
    }

    @Override
    public KnowledgeType getKnowledgeType() {
        return adaptKnowledgeType(delegate.getKnowledgeType());
    }

    public String getNamespace() {
        return delegate.getNamespace();
    }

    public String getId() {
        return delegate.getId();
    }

    public static List adaptQueries(Collection queries) {
        List result = new ArrayList();
        for (org.kie.api.definition.rule.Query query : queries) {
            result.add(new QueryAdapter(query));
        }
        return result;
    }

    @Override
    public int hashCode() {
        return delegate.hashCode();
    }

    @Override
    public boolean equals(Object obj) {
        return obj instanceof QueryAdapter && delegate.equals(((QueryAdapter)obj).delegate);
    }
}