co.cask.tigon.internal.app.runtime.BasicArguments.java Source code

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Here is the source code for co.cask.tigon.internal.app.runtime.BasicArguments.java

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/*
 * Copyright  2014 Cask Data, 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 co.cask.tigon.internal.app.runtime;

import com.google.common.collect.ImmutableMap;

import java.util.Iterator;
import java.util.Map;

/**
 *
 */
public final class BasicArguments implements Arguments {

    private final Map<String, String> options;

    public BasicArguments() {
        this(ImmutableMap.<String, String>of());
    }

    public BasicArguments(Map<String, String> options) {
        this.options = ImmutableMap.copyOf(options);
    }

    @Override
    public boolean hasOption(String optionName) {
        return options.containsKey(optionName);
    }

    @Override
    public String getOption(String name) {
        return options.get(name);
    }

    @Override
    public String getOption(String name, String defaultOption) {
        String value = getOption(name);
        return value == null ? defaultOption : value;
    }

    @Override
    public Iterator<Map.Entry<String, String>> iterator() {
        return options.entrySet().iterator();
    }
}