com.foc.vaadin.gui.XMLBuilder.java Source code

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Here is the source code for com.foc.vaadin.gui.XMLBuilder.java

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/*******************************************************************************
 * Copyright 2016 Antoine Nicolas SAMAHA
 * 
 * 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 com.foc.vaadin.gui;

import java.util.Iterator;

import org.xml.sax.Attributes;

import com.foc.vaadin.ICentralPanel;
import com.foc.vaadin.gui.layouts.FVLayout;
import com.foc.vaadin.gui.layouts.validationLayout.FValidationSettings;
import com.foc.vaadin.gui.xmlForm.FocXMLAttributes;
import com.vaadin.ui.Component;

public class XMLBuilder {
    private int spaces = 0;
    private StringBuilder xmlLayout = null;

    public XMLBuilder(FVLayout layout) {
        xmlLayout = new StringBuilder("");
        buildXMLRecursive(layout);
    }

    public String getXMLString() {
        return xmlLayout.toString();
    }

    @Override
    public String toString() {
        return getXMLString();
    }

    public void incrementSpaces() {
        spaces = spaces + 4;
    }

    public void decrementSpaces() {
        spaces = spaces - 4;
        if (spaces < 0)
            spaces = 0;
    }

    public void appendSpaces() {
        String spacesStr = "";
        for (int i = 0; i < spaces; i++) {
            spacesStr += " ";
        }
        append(spacesStr);
    }

    public void append(String string) {
        xmlLayout.append(string);
    }

    public void appendLine(String string) {
        appendSpaces();
        append(string);
        append("\n");
    }

    private void buildXMLRecursive(FVLayout layout) {
        if (layout != null) {
            Attributes attributes = layout != null ? layout.getAttributes() : null;
            appendLine("<" + layout.getXMLType() + " " + constructAttributes(attributes) + " >");
            incrementSpaces();

            layout.fillXMLNodeContent(this);

            Component layoutComponent = (Component) layout;
            if (layoutComponent.getParent() != null && layoutComponent.getParent() instanceof ICentralPanel) {
                FValidationSettings validationSettings = ((ICentralPanel) layoutComponent.getParent())
                        .getValidationSettings(true);
                if (validationSettings != null) {
                    validationSettings.fillXML(this);
                }
            }

            if (!layout.isXMLLeaf()) {
                Iterator<Component> itr = ((FVLayout) layout).getComponentIterator();

                while (itr.hasNext()) {
                    Component temp = itr.next();

                    if (temp instanceof FVLayout) {
                        FVLayout childLayout = (FVLayout) temp;

                        buildXMLRecursive(childLayout);
                    } else if (temp instanceof FocXMLGuiComponent) {
                        attributes = ((FocXMLGuiComponent) temp).getAttributes();
                        appendLine("<" + ((FocXMLGuiComponent) temp).getXMLType() + " "
                                + constructAttributes(attributes) + " />");
                    }
                }
            }

            decrementSpaces();
            appendLine("</" + ((FVLayout) layout).getXMLType() + ">");
        }
    }

    private String constructAttributes(Attributes attributes) {
        String ret = "";
        String q = "\"";

        if (attributes != null) {
            for (int i = 0; i < attributes.getLength(); i++) {
                String name = attributes.getQName(i);

                String value = "";

                if (attributes instanceof FocXMLAttributes) {
                    value = ((FocXMLAttributes) attributes).getValueWithoutResolve(attributes.getIndex(name));
                } else {
                    value = attributes.getValue(name);
                }

                //        Globals.logString(name+" : "+value);

                ret += (name + "=" + q + value + q + " ");
            }
        }

        return ret;
    }
}