Apache CXF example source code file (Scope.java)

This example Apache CXF source code file (Scope.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Apache CXF tags/keywords

arraylist, ast, classcastexception, comparable, comparable, iterator, list, runtimeexception, scope, scope, string, string, stringbuilder, stringbuilder, util

The Apache CXF Scope.java source code

/**
 * 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.cxf.tools.corba.processors.idl;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import antlr.collections.AST;

import org.apache.cxf.binding.corba.wsdl.CorbaConstants;

public final class Scope implements Comparable {

    private static final String SEPARATOR = ".";
    private List<String> scope;
    private Scope parent;
    
    public Scope() {
        scope = new ArrayList<String>();
        parent = this;
    }
    
    public Scope(String scopes, String separator) {
        java.util.StringTokenizer tokens = new java.util.StringTokenizer(scopes, separator);
        Scope rootScope = new Scope();
        Scope prevScope = rootScope.parent;
        scope = rootScope.scope;
        parent = this;
        while (tokens.hasMoreTokens()) {
            String token = tokens.nextToken();
            parent = prevScope;
            prevScope = new Scope(prevScope, token);
            scope.add(token);
        }
    }
    
    public Scope(Scope containingScope) {
        scope = new ArrayList<String>(containingScope.scope);
        parent = containingScope.getParent();
    }
    
    public Scope(Scope containingScope, String str) {
        scope = new ArrayList<String>(containingScope.scope);
        scope.add(str);
        parent = containingScope;
    }

    // This is used for interface inheritance
    public Scope(Scope containingScope, Scope prefixScope, String str) {
        scope = new ArrayList<String>(containingScope.scope);
        scope.addAll(prefixScope.scope);
        scope.add(str);
        parent = containingScope;
    }
    
    public Scope(Scope containingScope, AST node) {
        scope = new ArrayList<String>(containingScope.scope);
        if (node != null) { 
            scope.add(node.toString());
        }
        parent = containingScope;
    }
    
    public String tail() {
        int size = scope.size();
        if (size > 0) {
            return scope.get(size - 1);
        } else {
            return "";
        }
    }
    
    public Scope getParent() {
        return parent;
    }
    
    public String toString(String separator) {
        StringBuilder result = new StringBuilder();
        Iterator<String> it = scope.iterator();
        while (it.hasNext()) {
            result.append(it.next());
            if (it.hasNext()) {
                result.append(separator);
            }
        }
        return result.toString();
    }
    
    public String toString() {
        return toString(SEPARATOR);
    }

    public String toIDLRepositoryID() {
        StringBuilder result = new StringBuilder();
        result.append(CorbaConstants.REPO_STRING);
        result.append(toString("/"));
        result.append(CorbaConstants.IDL_VERSION);
        return result.toString();
    }

    public boolean equals(Object otherScope) {
        if (otherScope instanceof Scope) {
            return toString().equals(((Scope)otherScope).toString());   
        } else {
            return false;
        }
    }

    public int hashCode() {
        return toString().hashCode();
    }

    public int compareTo(Object otherScope) {
        if (otherScope == null) {
            throw new RuntimeException("Cannot compare a null object");
        }
        if (otherScope instanceof Scope) {
            return toString().compareTo(otherScope.toString());
        } else {
            throw new ClassCastException("Scope class expected but found "
                                         + otherScope.getClass().getName());
        }
    }
}