<filename>openaz-xacml-test/src/test/java/org/apache/openaz/xacml/pdp/test/conformance/ConformanceRepository.java
/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.apache.openaz.xacml.pdp.test.conformance;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;

import org.apache.openaz.xacml.pdp.std.StdPolicyFinderFactory;
import org.apache.openaz.xacml.util.StringUtils;
import org.apache.openaz.xacml.util.XACMLProperties;

/**
 * ConformanceRepository represents one or more policies for a single policy test, which will include one or
 * more root policies, and zero or more referenced policies.
 */
public class ConformanceRepository {
    private List<File> rootPolicies = new ArrayList<File>();
    private List<File> referencedPolicies = new ArrayList<File>();

    private void setXACMLProperty(String propertyName, List<File> listFiles) {
        Iterator<File> iterFiles = listFiles.iterator();
        StringBuilder stringBuilderIdList = new StringBuilder();
        while (iterFiles.hasNext()) {
            File file = iterFiles.next();
            if (stringBuilderIdList.length() > 0) {
                stringBuilderIdList.append(',');
            }
            stringBuilderIdList.append(file.getName());

            XACMLProperties.setProperty(file.getName() + StdPolicyFinderFactory.PROP_FILE,
                                        file.getAbsolutePath());
        }
        XACMLProperties.setProperty(propertyName, stringBuilderIdList.toString());
    }

    public ConformanceRepository() {
    }

    public void setXACMLProperties() {
        if (this.rootPolicies.size() > 0) {
            this.setXACMLProperty(XACMLProperties.PROP_ROOTPOLICIES, this.rootPolicies);
        }
        if (this.referencedPolicies.size() > 0) {
            this.setXACMLProperty(XACMLProperties.PROP_REFERENCEDPOLICIES, this.referencedPolicies);
        }
    }

    private void loadProperty(File fileDir, Properties properties, String propertyName, List<File> listFiles) {
        String fileNameList = properties.getProperty(propertyName);
        if (fileNameList != null) {
            String[] fileNameArray = fileNameList.split("[,]", 0);
            if (fileNameArray != null && fileNameArray.length > 0) {
                for (String fileName : fileNameArray) {
                    File file = new File(fileDir, fileName);
                    if (file.exists() && file.canRead()) {
                        listFiles.add(file);
                    }
                }
            }
        }
    }

    public void load(File fileRepository) throws IOException {
        Properties propertiesRepository = new Properties();
        try (InputStream is = new FileInputStream(fileRepository)) {
            propertiesRepository.load(is);
        }
        this.loadProperty(fileRepository.getParentFile(), propertiesRepository,
                          XACMLProperties.PROP_ROOTPOLICIES, this.rootPolicies);
        this.loadProperty(fileRepository.getParentFile(), propertiesRepository,
                          XACMLProperties.PROP_REFERENCEDPOLICIES, this.referencedPolicies);
    }

    public void addRootPolicy(File filePolicy) {
        this.rootPolicies.add(filePolicy);
    }

    public boolean hasRootPolicy() {
        return (this.rootPolicies.size() > 0);
    }

    @Override
    public String toString() {
        StringBuilder stringBuilder = new StringBuilder("{");
        boolean needComma = false;

        if (this.rootPolicies != null && this.rootPolicies.size() > 0) {
            stringBuilder.append("rootPolicies=");
            stringBuilder.append(StringUtils.toString(this.rootPolicies.iterator()));
            needComma = true;
        }
        if (this.referencedPolicies != null && this.referencedPolicies.size() > 0) {
            if (needComma) {
                stringBuilder.append(',');
            }
            stringBuilder.append("referencedPolicies=");
            stringBuilder.append(StringUtils.toString(this.referencedPolicies.iterator()));
            needComma = true;
        }
        stringBuilder.append('}');
        return stringBuilder.toString();
    }

}
