org.xacml4j.v30.spi.pip.ContentResolverDescriptorBuilder.java Source code

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Here is the source code for org.xacml4j.v30.spi.pip.ContentResolverDescriptorBuilder.java

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package org.xacml4j.v30.spi.pip;

/*
 * #%L
 * Xacml4J Core Engine Implementation
 * %%
 * Copyright (C) 2009 - 2014 Xacml4J.org
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
 * #L%
 */

import java.util.LinkedList;
import java.util.List;

import org.xacml4j.v30.AttributeDesignatorKey;
import org.xacml4j.v30.AttributeExpType;
import org.xacml4j.v30.AttributeReferenceKey;
import org.xacml4j.v30.AttributeSelectorKey;
import org.xacml4j.v30.CategoryId;

import com.google.common.base.Preconditions;
import com.google.common.collect.Iterables;

public final class ContentResolverDescriptorBuilder {
    private String id;
    private String name;
    private CategoryId category;
    private List<AttributeReferenceKey> keys;
    private int cacheTTL;

    private ContentResolverDescriptorBuilder(String id, String name, CategoryId category) {
        Preconditions.checkNotNull(id);
        Preconditions.checkNotNull(name);
        Preconditions.checkNotNull(category);
        this.id = id.replace(":", ".");
        this.name = name;
        this.category = category;
        this.keys = new LinkedList<AttributeReferenceKey>();
    }

    public static ContentResolverDescriptorBuilder builder(String id, String name, CategoryId category) {
        return new ContentResolverDescriptorBuilder(id, name, category);
    }

    public ContentResolverDescriptorBuilder designatorRef(CategoryId category, String attributeId,
            AttributeExpType dataType, String issuer) {
        this.keys.add(AttributeDesignatorKey.builder().category(category).dataType(dataType)
                .attributeId(attributeId).issuer(issuer).build());
        return this;
    }

    public ContentResolverDescriptorBuilder selectorRef(CategoryId category, String xpath,
            AttributeExpType dataType, String contextAttributeId) {
        this.keys.add(AttributeSelectorKey.builder().category(category).xpath(xpath).dataType(dataType)
                .contextSelectorId(contextAttributeId).build());
        return this;
    }

    public ContentResolverDescriptorBuilder keys(Iterable<AttributeReferenceKey> keys) {
        Iterables.addAll(this.keys, keys);
        return this;
    }

    public ContentResolverDescriptorBuilder noCache() {
        this.cacheTTL = -1;
        return this;
    }

    public ContentResolverDescriptorBuilder cache(int ttl) {
        this.cacheTTL = ttl;
        return this;
    }

    public ContentResolverDescriptor build() {
        return new ContentResolverDescriptorImpl();
    }

    public class ContentResolverDescriptorImpl extends BaseResolverDescriptor implements ContentResolverDescriptor {

        public ContentResolverDescriptorImpl() {
            super(id, name, category, keys, cacheTTL);
        }

        @Override
        public boolean canResolve(CategoryId category) {
            return getCategory().equals(category);
        }
    }
}