ReadOnlyConfiguration.java

/*
 * Copyright (C) 2012 Google 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 interactivespaces.configuration;

import interactivespaces.InteractiveSpacesException;
import interactivespaces.evaluation.ExpressionEvaluator;

import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * A wrapper for configurations which makes them unmodifiable.
 *
 * @author Keith M. Hughes
 */
public class ReadOnlyConfiguration implements Configuration {

  /**
   * The configuration which is wrapped.
   */
  private Configuration wrapped;

  /**
   * Create a read-only configuration wrapping a mutable configuration.
   *
   * @param wrapped
   *          configuration to make read-only
   */
  public ReadOnlyConfiguration(Configuration wrapped) {
    this.wrapped = wrapped;
  }

  @Override
  public boolean containsProperty(String property) {
    return wrapped.containsProperty(property);
  }

  @Override
  public String findValue(String property) {
    return wrapped.findValue(property);
  }

  @Override
  public String getPropertyString(String property) {
    return wrapped.getPropertyString(property);
  }

  @Override
  public String getPropertyString(String property, String defaultValue) {
    return wrapped.getPropertyString(property, defaultValue);
  }

  @Override
  public String getRequiredPropertyString(String property) {
    return wrapped.getRequiredPropertyString(property);
  }

  @Override
  public Integer getPropertyInteger(String property, Integer defaultValue) {
    return wrapped.getPropertyInteger(property, defaultValue);
  }

  @Override
  public Integer getRequiredPropertyInteger(String property) {
    return wrapped.getRequiredPropertyInteger(property);
  }

  @Override
  public Long getPropertyLong(String property, Long defaultValue) {
    return wrapped.getPropertyLong(property, defaultValue);
  }

  @Override
  public Long getRequiredPropertyLong(String property) {
    return wrapped.getRequiredPropertyLong(property);
  }

  @Override
  public Double getPropertyDouble(String property, Double defaultValue) {
    return wrapped.getPropertyDouble(property, defaultValue);
  }

  @Override
  public Double getRequiredPropertyDouble(String property) {
    return wrapped.getRequiredPropertyDouble(property);
  }

  @Override
  public Boolean getPropertyBoolean(String property, Boolean defaultValue) {
    return wrapped.getPropertyBoolean(property, defaultValue);
  }

  @Override
  public Boolean getRequiredPropertyBoolean(String property) {
    return wrapped.getRequiredPropertyBoolean(property);
  }

  @Override
  public List<String> getPropertyStringList(String property, String delineator) {
    return wrapped.getPropertyStringList(property, delineator);
  }

  @Override
  public Set<String> getPropertyStringSet(String property, String delineator) {
    return wrapped.getPropertyStringSet(property, delineator);
  }

  @Override
  public String evaluate(String expression) {
    return wrapped.evaluate(expression);
  }

  @Override
  public ExpressionEvaluator getExpressionEvaluator() {
    return wrapped.getExpressionEvaluator();
  }

  @Override
  public void setValue(String property, String value) {
    throw new InteractiveSpacesException("Cannot modify configuration");
  }

  @Override
  public void setValues(Map<String, String> values) {
    throw new InteractiveSpacesException("Cannot modify configuration");
  }

  @Override
  public void setParent(Configuration parent) {
    throw new InteractiveSpacesException("Cannot modify configuration");
  }

  @Override
  public Configuration getParent() {
    return wrapped.getParent();
  }

  @Override
  public String findValueLocally(String property) {
    return wrapped.findValueLocally(property);
  }

  @Override
  public boolean containsPropertyLocally(String property) {
    return wrapped.containsPropertyLocally(property);
  }

  @Override
  public void clear() {
    throw new InteractiveSpacesException("Cannot modify configuration");
  }

  @Override
  public Map<String, String> getCollapsedMap() {
    return wrapped.getCollapsedMap();
  }

  @Override
  public void addCollapsedEntries(Map<String, String> map) {
    wrapped.addCollapsedEntries(map);
  }
}