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creates scripts that can be used to manage services

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/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.jclouds.scriptbuilder.domain;

import static com.google.common.base.Preconditions.checkNotNull;

import java.util.Arrays;

import org.jclouds.scriptbuilder.util.Utils;

import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;

/**
 * Statement used in a shell script
 * 
 * @author Adrian Cole
 */
public class InterpretableStatement implements Statement {

   private String[] statements;

   public InterpretableStatement(String... statements) {
      this.statements = checkNotNull(statements, "statements");
   }

   public String render(OsFamily family) {
      return Utils
               .replaceTokens(Joiner.on(ShellToken.LF.to(family)).join(statements), ShellToken.tokenValueMap(family));
   }

   @Override
   public Iterable functionDependencies(OsFamily family) {
      return ImmutableList.of();
   }

   @Override
   public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + Arrays.hashCode(statements);
      return result;
   }

   @Override
   public boolean equals(Object obj) {
      if (this == obj)
         return true;
      if (obj == null)
         return false;
      if (getClass() != obj.getClass())
         return false;
      InterpretableStatement other = (InterpretableStatement) obj;
      if (!Arrays.equals(statements, other.statements))
         return false;
      return true;
   }

   @Override
   public String toString() {
      return "[statements=" + Arrays.toString(statements) + "]";
   }
}