net.stevechaloner.intellijad.environment.EnvironmentValidator.java Source code

Introduction

Here is the source code for net.stevechaloner.intellijad.environment.EnvironmentValidator.java

Source

/*
 * Copyright 2007 Steve Chaloner
 *
 * 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 net.stevechaloner.intellijad.environment;

import com.intellij.openapi.options.ShowSettingsUtil;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.DialogBuilder;
import com.intellij.openapi.ui.DialogWrapper;
import com.intellij.openapi.ui.MultiLineLabelUI;
import com.intellij.openapi.util.text.StringUtil;

import javax.swing.JLabel;
import java.io.File;

import net.stevechaloner.intellijad.IntelliJadResourceBundle;
import net.stevechaloner.intellijad.config.ApplicationConfigComponent;
import net.stevechaloner.intellijad.config.Config;
import net.stevechaloner.intellijad.config.ConfigAccessor;
import net.stevechaloner.intellijad.config.ProjectConfigComponent;
import net.stevechaloner.intellijad.console.ConsoleContext;
import net.stevechaloner.intellijad.console.ConsoleEntryType;

import org.jetbrains.annotations.NotNull;

/**
 * Validates the environment and configuration as suitable for decompilation.  If it's not,
 * the user is given the opportunity to rectify the issues.
 *
 * @author Steve Chaloner
 */
public class EnvironmentValidator {
    /**
     * Validates the environment prior to decompilation.
     *
     * @param config the configuration
     * @param envContext the environment configuration
     * @param consoleContext the console's logging context for this operation
     * @return true if the decompilation should continue
     */
    public static ValidationResult validateEnvironment(@NotNull Config config,
            @NotNull EnvironmentContext envContext, @NotNull ConsoleContext consoleContext) {
        String message = null;
        Object[] params = {};
        String jadPath = config.getJadPath();
        if (StringUtil.isEmptyOrSpaces(jadPath)) {
            message = "error.unspecified-jad-path";
        } else {
            File f = new File(jadPath);
            if (!f.exists()) {
                message = "error.non-existant-jad-path";
                params = new String[] { jadPath };
            } else if (!f.isFile()) {
                message = "error.invalid-jad-path";
                params = new String[] { jadPath };
            }
        }

        ValidationResult result;
        if (message != null) {
            result = showErrorDialog(config, envContext, consoleContext,
                    IntelliJadResourceBundle.message(message, params));
            consoleContext.addSectionMessage(ConsoleEntryType.ERROR, message, params);

        } else {
            result = new ValidationResult(true, false);
        }
        return result;
    }

    /**
     * Shows the error dialog, allowing the user to cancel the decompilation or open the config.
     *
     * @param config the configuration
     * @param envContext the environment context
     * @param consoleContext the console's logging context
     * @param message the error message
     * @return the result of the dialog-based operation
     */
    private static ValidationResult showErrorDialog(@NotNull Config config, @NotNull EnvironmentContext envContext,
            @NotNull ConsoleContext consoleContext, @NotNull String message) {
        DialogBuilder builder = new DialogBuilder(envContext.getProject());
        builder.setTitle(IntelliJadResourceBundle.message("plugin.IntelliJad.name"));
        builder.addOkAction().setText(IntelliJadResourceBundle.message("option.open-config"));
        builder.addCancelAction().setText(IntelliJadResourceBundle.message("option.cancel-decompilation"));
        JLabel label = new JLabel(message);
        label.setUI(new MultiLineLabelUI());
        builder.setCenterPanel(label);
        builder.setOkActionEnabled(true);

        ValidationResult result;
        switch (builder.show()) {
        case DialogWrapper.OK_EXIT_CODE:
            // this will cause recursive correction unless cancel is selected
            Project project = envContext.getProject();
            ConfigAccessor configAccessor = config.isUseProjectSpecificSettings()
                    ? new ProjectConfigComponent(project)
                    : new ApplicationConfigComponent();
            // design point - if this dialog is cancelled, should we assume the decompilation is cancelled?
            ShowSettingsUtil.getInstance().editConfigurable(project, configAccessor);
            config.copyFrom(configAccessor.getConfig());
            result = validateEnvironment(config, envContext, consoleContext);
            break;
        case DialogWrapper.CANCEL_EXIT_CODE:
        default:
            result = new ValidationResult(false, true);
            break;
        }

        return result;
    }
}