org.smartdeveloperhub.curator.connector.io.ConversionContext.java Source code

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Here is the source code for org.smartdeveloperhub.curator.connector.io.ConversionContext.java

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/**
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   This file is part of the Smart Developer Hub Project:
 *     http://www.smartdeveloperhub.org/
 *
 *   Center for Open Middleware
 *     http://www.centeropenmiddleware.com/
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Copyright (C) 2015-2016 Center for Open Middleware.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   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.
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 *   Artifact    : org.smartdeveloperhub.curator:sdh-curator-connector:0.2.0
 *   Bundle      : sdh-curator-connector-0.2.0.jar
 * #-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=#
 */
package org.smartdeveloperhub.curator.connector.io;

import java.net.URI;
import java.util.Collections;
import java.util.Map;

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

public final class ConversionContext {

    private static final URI NULL_BASE = URI.create("");

    private final URI base;
    private final Map<String, String> namespacePrefixes;

    private ConversionContext(final URI base, final Map<String, String> namespacePrefixes) {
        this.base = base;
        this.namespacePrefixes = namespacePrefixes;
    }

    public URI base() {
        return this.base;
    }

    public Map<String, String> namespacePrefixes() {
        return Collections.unmodifiableMap(this.namespacePrefixes);
    }

    public ConversionContext withBase(final URI base) {
        return new ConversionContext(base == null ? NULL_BASE : base, this.namespacePrefixes);
    }

    public ConversionContext withNamespacePrefix(final String namespace, final String prefix) {
        Preconditions.checkNotNull(namespace, "Namespace cannot be null");
        Preconditions.checkNotNull(prefix, "Prefix cannot be null");
        final Map<String, String> newNamespacePrefixes = Maps.newLinkedHashMap(this.namespacePrefixes);
        newNamespacePrefixes.put(namespace, prefix);
        return new ConversionContext(this.base, newNamespacePrefixes);
    }

    public static ConversionContext newInstance() {
        return new ConversionContext(NULL_BASE, Maps.<String, String>newLinkedHashMap());
    }

}