javaenumtypewriter.java

Java有关XML编程需要用到axis 的源代码 把里面bin下的包导入相应的Java工程 进行使用

        // FromValue returns the unique enumeration value object from the table
        pw.println("    public static " + javaName + " fromValue(" + baseType
                + " value)");
        pw.println("          throws java.lang.IllegalArgumentException {");
        pw.println("        " + javaName + " enumeration = (" + javaName + ")");

        if (baseClass.equals("java.lang.String")
                || baseClass.equals(baseType)) {
            pw.println("            _table_.get(value);");
        } else {
            pw.println("            _table_.get(new " + baseClass
                    + "(value));");
        }

        pw.println(
                "        if (enumeration==null) throw new java.lang.IllegalArgumentException();");
        pw.println("        return enumeration;");
        pw.println("    }");

        // FromString returns the unique enumeration value object from a string representation
        pw.println("    public static " + javaName
                + " fromString(java.lang.String value)");
        pw.println("          throws java.lang.IllegalArgumentException {");

        if (baseClass.equals("java.lang.String")) {
            pw.println("        return fromValue(value);");
        } else if (baseClass.equals("javax.xml.namespace.QName")) {
            pw.println("        try {");
            pw.println("            return fromValue(javax.xml.namespace.QName.valueOf"
                    + "(value));");
            pw.println("        } catch (Exception e) {");
            pw.println(
                    "            throw new java.lang.IllegalArgumentException();");
            pw.println("        }");
        } else if (baseClass.equals(baseType)) {
            pw.println("        try {");
            pw.println("            return fromValue(new " + baseClass
                    + "(value));");
            pw.println("        } catch (Exception e) {");
            pw.println(
                    "            throw new java.lang.IllegalArgumentException();");
            pw.println("        }");
        } else if (baseClass.equals("java.lang.Character")) {
            pw.println("        if (value != null && value.length() == 1);");
            pw.println("            return fromValue(value.charAt(0));");
            pw.println(
                    "        throw new java.lang.IllegalArgumentException();");
        } else if (baseClass.equals("java.lang.Integer")) {
            pw.println("        try {");
            pw.println(
                    "            return fromValue(java.lang.Integer.parseInt(value));");
            pw.println("        } catch (Exception e) {");
            pw.println(
                    "            throw new java.lang.IllegalArgumentException();");
            pw.println("        }");
        } else {
            String parse = "parse"
                    + baseClass.substring(baseClass.lastIndexOf(".")
                    + 1);

            pw.println("        try {");
            pw.println("            return fromValue(" + baseClass + "."
                    + parse + "(value));");
            pw.println("        } catch (Exception e) {");
            pw.println(
                    "            throw new java.lang.IllegalArgumentException();");
            pw.println("        }");
        }

        pw.println("    }");

        // Equals == to determine equality value.
        // Since enumeration values are singletons, == is appropriate for equals()
        pw.println(
                "    public boolean equals(java.lang.Object obj) {return (obj == this);}");

        // Provide a reasonable hashCode method (hashCode of the string value of the enumeration)
        pw.println(
                "    public int hashCode() { return toString().hashCode();}");

        // toString returns a string representation of the enumerated value
        if (baseClass.equals("java.lang.String")) {
            pw.println(
                    "    public java.lang.String toString() { return _value_;}");
        } else if (baseClass.equals(baseType)) {
            pw.println(
                    "    public java.lang.String toString() { return _value_.toString();}");
        } else {
            pw.println(
                    "    public java.lang.String toString() { return java.lang.String.valueOf(_value_);}");
        }

        pw.println(
                "    public java.lang.Object readResolve() throws java.io.ObjectStreamException { return fromValue(_value_);}");
        pw.println(
                "    public static org.apache.axis.encoding.Serializer getSerializer(");
        pw.println("           java.lang.String mechType, ");
        pw.println("           java.lang.Class _javaType,  ");
        pw.println("           javax.xml.namespace.QName _xmlType) {");
        pw.println("        return ");
        pw.println(
                "          new org.apache.axis.encoding.ser.EnumSerializer(");
        pw.println("            _javaType, _xmlType);");
        pw.println("    }");
        pw.println(
                "    public static org.apache.axis.encoding.Deserializer getDeserializer(");
        pw.println("           java.lang.String mechType, ");
        pw.println("           java.lang.Class _javaType,  ");
        pw.println("           javax.xml.namespace.QName _xmlType) {");
        pw.println("        return ");
        pw.println(
                "          new org.apache.axis.encoding.ser.EnumDeserializer(");
        pw.println("            _javaType, _xmlType);");
        pw.println("    }");
        pw.println("    // " + Messages.getMessage("typeMeta"));
        pw.println(
                "    private static org.apache.axis.description.TypeDesc typeDesc =");
        pw.println("        new org.apache.axis.description.TypeDesc("
                + Utils.getJavaLocalName(type.getName()) + ".class);");
        pw.println();
        pw.println("    static {");
        pw.println("        typeDesc.setXmlType("
                + Utils.getNewQName(type.getQName()) + ");");
        pw.println("    }");
        pw.println("    /**");
        pw.println("     * " + Messages.getMessage("returnTypeMeta"));
        pw.println("     */");
        pw.println(
                "    public static org.apache.axis.description.TypeDesc getTypeDesc() {");
        pw.println("        return typeDesc;");
        pw.println("    }");
        pw.println();
    }    // writeFileBody

    /**
     * Get the enumeration names for the values.
     * The name is affected by whether all of the values of the enumeration
     * can be expressed as valid java identifiers.
     * 
     * @param bv Vector base and values vector from getEnumerationBaseAndValues
     * @return Vector names of enum value identifiers.
     */
    public static Vector getEnumValueIds(Vector bv) {

        boolean validJava = true;    // Assume all enum values are valid ids

        // Walk the values looking for invalid ids
        for (int i = 1; (i < bv.size()) && validJava; i++) {
            String value = (String) bv.get(i);

            if (!JavaUtils.isJavaId(value)) {
                validJava = false;
            }
        }

        // Build the vector of ids
        Vector ids = new Vector();

        for (int i = 1; i < bv.size(); i++) {

            // If any enum values are not valid java, then
            // all of the ids are of the form value<1..N>.
            if (!validJava) {
                ids.add("value" + i);
            } else {
                ids.add((String) bv.get(i));
            }
        }

        return ids;
    }

    /** Generate a java source file for enum class.
     * If the emitter works in deploy mode and the class already exists, the source wull not be generated.
     */
    public void generate() throws IOException {
        String fqcn = getPackage() + "." + getClassName();	
        if (emitter.isDeploy()) {
            if (!emitter.doesExist(fqcn)) {
                super.generate();
            }
        } else {
            super.generate();
        }
    }
}    // class JavaEnumTypeWriter