/**
    *
    * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com>
    *
    * ====================================================================
    * 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 org.jclouds.scriptbuilder.domain;
  
  import static com.google.common.base.Preconditions.checkNotNull;
  
  import java.util.List;
  
  import com.google.common.collect.ImmutableList;
  import com.google.common.collect.ImmutableList.Builder;
  
  /**
   * Statements used in a shell script
   * 
   * @author Adrian Cole
   */
  public class StatementList implements Statement {
  
     public final List<Statement> statements;
  
     public StatementList(Statement... statements) {
        this.statements = ImmutableList.copyOf(checkNotNull(statements, "statements"));
     }
  
     public StatementList(Iterable<Statement> statements) {
        this.statements = ImmutableList.copyOf(checkNotNull(statements, "statements"));
     }
  
     public String render(OsFamily family) {
        StringBuilder statementsBuilder = new StringBuilder();
        for (Statement statement : statements) {
           statementsBuilder.append(statement.render(family));
        }
        return statementsBuilder.toString();
     }
  
     @Override
     public Iterable<String> functionDependencies(OsFamily family) {
        Builder<String> functions = ImmutableList.<String> builder();
        for (Statement statement : statements) {
           functions.addAll(statement.functionDependencies(family));
        }
        return functions.build();
     }
  
     @Override
     public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((statements == null) ? 0 : statements.hashCode());
        return result;
     }
  
     @Override
     public boolean equals(Object obj) {
        if (this == obj)
           return true;
        if (obj == null)
           return false;
        if (getClass() != obj.getClass())
           return false;
        StatementList other = (StatementList) obj;
        if (statements == null) {
           if (other.statements != null)
              return false;
        } else if (!statements.equals(other.statements))
           return false;
        return true;
     }
  
     public List<Statement> getStatements() {
        return statements;
     }
  }