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/*
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 * in compliance with the License.
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package com.sun.jersey.server.impl.modelapi.validation;

import com.sun.jersey.api.model.AbstractModelComponent;
import com.sun.jersey.api.model.AbstractModelVisitor;
import com.sun.jersey.api.model.ResourceModelIssue;
import java.util.LinkedList;
import java.util.List;

/**
 * Abstract resource model validator allows to simply implement
 * validators of resource model. A validator maintains a list
 * of model issues found. User can call validate method to validate
 * several resources by a single validator and collect issues.
 * 
 * @author [email protected]
 */
public abstract class AbstractModelValidator implements AbstractModelVisitor {

    final List issueList = new LinkedList();

    /**
     * Returns a list of issues found after {@link #validate(com.sun.jersey.api.model.AbstractModelComponent) }
     * method has been invoked
     * @return a non-null list of issues
     */
    public List getIssueList() {
        return issueList;
    }

    /**
     * Convenience method to see if there were fatal issues found
     * @return true if there are any fatal issues present in the current issue list
     */
    public boolean fatalIssuesFound() {
        for (ResourceModelIssue issue : getIssueList()) {
            if (issue.isFatal()) {
                return true;
            }
        }
        return false;
    }

    /**
     * Removes all issues from the current issue list. The method could be used
     * to re-use the same validator for another resource model
     */
    public void cleanIssueList() {
        issueList.clear();
    }

    /**
     * The validate method validates a component and adds possible
     * issues found to it's list. The list of issues could be then retreived
     * via getIssueList method
     * 
     * @param component
     */
    public void validate(final AbstractModelComponent component) {
        component.accept(this);
        List componentList = component.getComponents();
        if (null != componentList) {
            for (AbstractModelComponent subcomponent : componentList) {
                validate(subcomponent);
            }
        }
    }
}