com.izforge.izpack.installer.requirement.RequirementsChecker Maven / Gradle / Ivy
/*
* IzPack - Copyright 2001-2012 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2012 Tim Anderson
*
* 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.izforge.izpack.installer.requirement;
import com.izforge.izpack.api.data.Variables;
import com.izforge.izpack.api.installer.RequirementChecker;
/**
* Verifies all installation requirements are met. This should be used prior to installation commencing.
*
* @author Tim Anderson
*/
public class RequirementsChecker implements RequirementChecker
{
/**
* The variables.
*/
private final Variables variables;
/**
* The language pack checker.
*/
private final LangPackChecker langChecker;
/**
* The version checker.
*/
private final JavaVersionChecker versionChecker;
/**
* The JDK checker.
*/
private final JDKChecker jdkChecker;
/**
* The lock file checker.
*/
private final LockFileChecker lockChecker;
/**
* The expired installer checker.
*/
private final ExpiredChecker expiredChecker;
/**
* The installer requirement checker.
*/
private final InstallerRequirementChecker installerRequirementChecker;
/**
* Constructs a RequirementsChecker.
*
* @param variables the variables. These are refreshed prior to checking requirements
* @param langChecker the language pack checker
* @param versionChecker the java version checker
* @param jdkChecker the JDK checker
* @param lockChecker the lock file checker
* @param expiredChecker the expiration checker
* @param installerRequirementChecker the installer requirement checker
*/
public RequirementsChecker(Variables variables, LangPackChecker langChecker, JavaVersionChecker versionChecker,
JDKChecker jdkChecker, LockFileChecker lockChecker,
ExpiredChecker expiredChecker,
InstallerRequirementChecker installerRequirementChecker)
{
this.variables = variables;
this.versionChecker = versionChecker;
this.jdkChecker = jdkChecker;
this.lockChecker = lockChecker;
this.langChecker = langChecker;
this.expiredChecker = expiredChecker;
this.installerRequirementChecker = installerRequirementChecker;
}
/**
* Determines if installation requirements are met.
*
* @return true if requirements are met, otherwise false
*/
@Override
public boolean check()
{
variables.refresh();
return langChecker.check() && versionChecker.check() && jdkChecker.check() && lockChecker.check() &&
expiredChecker.check() &&
installerRequirementChecker.check();
}
}