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/*
 * Copyright 2010 JBoss Inc
 *
 * 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 org.drools.verifier.components;

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

import org.drools.compiler.lang.descr.BaseDescr;
import org.drools.verifier.components.Consequence.ConsequenceType;
import org.drools.verifier.report.components.Cause;

public class VerifierRule extends PackageComponent
    implements
    Cause {

    private Map       attributes      = new HashMap();

    private String                    consequencePath;
    private ConsequenceType           consequenceType;
    private int                       lineNumber;

    private int                       packageId;

    private String                    name;

    private Collection        header          = new ArrayList();

    private Collection        lhsRows         = new ArrayList();

    private Collection        rhsRows         = new ArrayList();

    private String                    description;

    private Map>       metadata        = new HashMap>();

    private Collection        commentMetadata = new ArrayList();

    private Map> otherInfo       = new HashMap>();

    private int                       offset          = 0;

    public VerifierRule(BaseDescr descr,RulePackage rulePackage) {
        super(descr, rulePackage );
    }

    @Override
    public String getPath() {
        return String.format( "%s/rule[@name='%s']",
                              getPackagePath(),
                              getName() );
    }

    public int getOffset() {
        offset++;
        return offset % 2;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setAttributes(Map attributes) {
        this.attributes = attributes;
    }

    public Map getAttributes() {
        return attributes;
    }

    public String getConsequencePath() {
        return consequencePath;
    }

    public void setConsequencePath(String consequencePath) {
        this.consequencePath = consequencePath;
    }

    public ConsequenceType getConsequenceType() {
        return consequenceType;
    }

    public void setConsequenceType(ConsequenceType consequenceType) {
        this.consequenceType = consequenceType;
    }

    public int getLineNumber() {
        return lineNumber;
    }

    public void setLineNumber(int lineNumber) {
        this.lineNumber = lineNumber;
    }

    @Override
    public String toString() {
        return "Rule '" + getName() + "'";
    }

    public int getPackageId() {
        return packageId;
    }

    public void setPackageId(int packageId) {
        this.packageId = packageId;
    }

    public VerifierComponentType getVerifierComponentType() {
        return VerifierComponentType.RULE;
    }

    public Collection getHeader() {
        return header;
    }

    public Collection getLhsRows() {
        return lhsRows;
    }

    public Collection getRhsRows() {
        return rhsRows;
    }

    public Map> getMetadata() {
        return metadata;
    }

    public String getMetaAttribute(String key) {
        Map elementValues = metadata.get(key);
        return elementValues != null ? elementValues.keySet().iterator().next() : null;
    }

    public Collection getCommentMetadata() {
        return commentMetadata;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public String getDescription() {
        return description;
    }

    public Map> getOtherInfo() {
        return otherInfo;
    }
}