/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF 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.apache.commons.jxpath.ri.compiler;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Map;
  
  import org.apache.commons.jxpath.BasicNodeSet;
  import org.apache.commons.jxpath.ExpressionContext;
  import org.apache.commons.jxpath.JXPathContext;
  import org.apache.commons.jxpath.NestedTestBean;
  import org.apache.commons.jxpath.NodeSet;
  import org.apache.commons.jxpath.Pointer;
  
  /**
   */
  public class TestFunctions {
  
      public static TestFunctions build(final int foo, final String bar) {
          return new TestFunctions(foo, bar);
      }
  
      public static Collection collection() {
          final ArrayList list = new ArrayList();
          list.add(new NestedTestBean("foo"));
          list.add(new NestedTestBean("bar"));
          return list;
      }
  
      /**
       * Returns the number of nodes in the context that is passed as the first argument.
       */
      public static int count(final ExpressionContext context, final Collection col) {
          for (final Object element : col) {
              if (!(element instanceof String)) {
                  throw new IllegalArgumentException("Invalid argument");
              }
          }
          return col.size();
      }
  
      public static int countPointers(final NodeSet nodeSet) {
          return nodeSet.getPointers().size();
      }
  
      public static Boolean isInstance(final Object o, final Class c) {
          return c.isInstance(o) ? Boolean.TRUE : Boolean.FALSE;
      }
  
      /**
       * Returns true if the current node in the current context is a map
       */
      public static boolean isMap(final ExpressionContext context) {
          final Pointer ptr = context.getContextNodePointer();
          return ptr == null ? false : ptr.getValue() instanceof Map;
      }
  
      public static Collection items(final Collection arg) {
          return arg;
      }
  
      public static NodeSet nodeSet(final ExpressionContext context) {
          final JXPathContext jxpathCtx = context.getJXPathContext();
          final BasicNodeSet set = new BasicNodeSet();
          set.add(jxpathCtx.getPointer("/beans[1]"));
          set.add(jxpathCtx.getPointer("/beans[2]"));
          return set;
      }
  
      public static String path(final ExpressionContext context) {
          return context.getContextNodePointer().asPath();
      }
  
      public static String string(final String string) {
          return string;
      }
  
      private int foo;
      private String bar;
  
      public TestFunctions() {
      }
  
     public TestFunctions(final ExpressionContext context, final String bar) {
         this.foo = ((Number) context.getContextNodePointer().getValue()).intValue();
         this.bar = bar;
     }
 
     public TestFunctions(final int foo, final Object object, final boolean another) {
         this.foo = foo;
         bar = String.valueOf(object);
     }
 
     public TestFunctions(final int foo, final String bar) {
         this.foo = foo;
         this.bar = bar;
     }
 
     public String className(final ExpressionContext context, final ExpressionContext child) {
         return context.getContextNodePointer().asPath();
     }
 
     public void doit() {
     }
 
     public String getBar() {
         return bar;
     }
 
     public int getFoo() {
         return foo;
     }
 
     public String instancePath(final ExpressionContext context) {
         return context.getContextNodePointer().asPath();
     }
 
     public String pathWithSuffix(final ExpressionContext context, final String suffix) {
         return context.getContextNodePointer().asPath() + suffix;
     }
 
     public TestFunctions setFooAndBar(final int foo, final String bar) {
         this.foo = foo;
         this.bar = bar;
         return this;
     }
 
     @Override
     public String toString() {
         return "foo=" + foo + "; bar=" + bar;
     }
 }