org.springframework.ide.eclipse.boot.wizard.UrlMaker.java Source code

Introduction

Here is the source code for org.springframework.ide.eclipse.boot.wizard.UrlMaker.java

Source

/*******************************************************************************
 * Copyright (c) 2013, 2016 GoPivotal, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     GoPivotal, Inc. - initial API and implementation
 *******************************************************************************/
package org.springframework.ide.eclipse.boot.wizard;

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

import org.springframework.ide.eclipse.boot.core.SimpleUriBuilder;
import org.springframework.ide.eclipse.boot.core.initializr.IdAble;
import org.springsource.ide.eclipse.commons.livexp.core.FieldModel;
import org.springsource.ide.eclipse.commons.livexp.core.LiveExpression;

/**
 * LiveExpression that computes a URL String based on a number of input fields.
 */
public class UrlMaker extends LiveExpression<String> {

    private final List<FieldModel<String>> inputs = new ArrayList<FieldModel<String>>();
    private final List<MultiSelectionFieldModel<IdAble>> multiInputs = new ArrayList<MultiSelectionFieldModel<IdAble>>();
    private final List<FieldModel<RadioInfo>> radioInputs = new ArrayList<FieldModel<RadioInfo>>();

    private final LiveExpression<String> baseUrl;

    public UrlMaker(String baseUrl) {
        this(LiveExpression.constant(baseUrl));
    }

    public UrlMaker(LiveExpression<String> baseUrl) {
        this.baseUrl = baseUrl;
        dependsOn(baseUrl);
    }

    public UrlMaker addField(FieldModel<String> param) {
        inputs.add(param);
        dependsOn(param.getVariable()); //Recompute my value when the input changes.
        return this;
    }

    @SuppressWarnings("unchecked")
    public <T extends IdAble> UrlMaker addField(MultiSelectionFieldModel<T> param) {
        multiInputs.add((MultiSelectionFieldModel<IdAble>) param);
        for (T choice : param.getChoices()) {
            //Recomput value when any 'checkbox' selection status changes
            dependsOn(param.getSelection(choice));
        }
        return this;
    }

    public void addField(HierarchicalMultiSelectionFieldModel<? extends IdAble> param) {
        for (String cat : param.getCategories()) {
            addField(param.getContents(cat));
        }
    }

    public UrlMaker addField(RadioGroup group) {
        this.radioInputs.add(group);
        dependsOn(group.getVariable());
        return this;
    }

    @Override
    protected String compute() {
        String baseUrl = this.baseUrl.getValue();
        if (baseUrl == null) {
            baseUrl = "";
        } else {
            baseUrl = baseUrl.trim();
        }
        SimpleUriBuilder builder = new SimpleUriBuilder(baseUrl);
        for (FieldModel<String> f : inputs) {
            String paramValue = f.getValue();
            if (paramValue != null) {
                builder.addParameter(f.getName(), paramValue);
            }
        }

        for (FieldModel<RadioInfo> f : radioInputs) {
            RadioInfo radio = f.getValue();
            if (radio != null) {
                String paramValue = radio.getUrlParamValue();
                if (paramValue != null) {
                    builder.addParameter(f.getName(), paramValue);
                }
            }
        }

        for (MultiSelectionFieldModel<IdAble> mf : multiInputs) {
            String name = mf.getName();
            for (IdAble selectedValue : mf.getCurrentSelection()) {
                //Note that it is possible for values to be selected and disabled at the same time
                // (i.e. a checkbox can be checked and 'greyed' out at the same time)
                //We must therefore check enablement before adding a selection to the URI.
                if (mf.getEnablement(selectedValue).getValue()) {
                    builder.addParameter(name, selectedValue.getId());
                }
            }
        }

        return builder.toString();
    }

}