/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package build.tools.jdwpgen;

import java.util.*;

import java.io.*;

class AltNode extends AbstractGroupNode implements TypeNode {

    SelectNode select = null;

    void constrain(Context ctx) {

        super.constrain(ctx);

        if (!(nameNode instanceof NameValueNode)) {

            error("Alt name must have value: " + nameNode);

        }

        if (parent instanceof SelectNode) {

            select = (SelectNode)parent;

        } else {

            error("Alt must be in Select");

        }

    }

    void document(PrintWriter writer) {

        docRowStart(writer);

        writer.println("<td colspan=" +

                       (maxStructIndent - structIndent + 1) + ">");

        writer.println("Case " + nameNode.name + " - if <i>" +

                       ((SelectNode)parent).typeNode.name +

                       "</i> is " + nameNode.value() + ":");

        writer.println("<td>" + comment() + "&nbsp;");

        ++structIndent;

        super.document(writer);

        --structIndent;

    }

    String javaClassImplements() {

        return " extends " + select.commonBaseClass();

    }

    void genJavaClassSpecifics(PrintWriter writer, int depth) {

        indent(writer, depth);

        writer.print("static final " + select.typeNode.javaType());

        writer.println(" ALT_ID = " + nameNode.value() + ";");

        if (context.isWritingCommand()) {

            genJavaCreateMethod(writer, depth);

        } else {

            indent(writer, depth);

            writer.println(select.typeNode.javaParam() + "() {");

            indent(writer, depth+1);

            writer.println("return ALT_ID;");

            indent(writer, depth);

            writer.println("}");

        }

        super.genJavaClassSpecifics(writer, depth);

    }

    void genJavaWriteMethod(PrintWriter writer, int depth) {

        genJavaWriteMethod(writer, depth, "");

    }

    void genJavaReadsSelectCase(PrintWriter writer, int depth, String common) {

        indent(writer, depth);

        writer.println("case " + nameNode.value() + ":");

        indent(writer, depth+1);

        writer.println(common + " = new " + name + "(vm, ps);");

        indent(writer, depth+1);

        writer.println("break;");

    }

    void genJavaCreateMethod(PrintWriter writer, int depth) {

        indent(writer, depth);

        writer.print("static " + select.name() + " create(");

        writer.print(javaParams());

        writer.println(") {");

        indent(writer, depth+1);

        writer.print("return new " + select.name() + "(");

        writer.print("ALT_ID, new " + javaClassName() + "(");

        for (Iterator<Node> it = components.iterator(); it.hasNext();) {

            TypeNode tn = (TypeNode)it.next();

            writer.print(tn.name());

            if (it.hasNext()) {

                writer.print(", ");

            }

        }

        writer.println("));");

        indent(writer, depth);

        writer.println("}");

    }

}