/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* 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
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.inject;
import org.eclipse.che.commons.lang.Pair;
import com.google.inject.AbstractModule;
import com.google.inject.TypeLiteral;
import com.google.inject.matcher.Matchers;
import com.google.inject.spi.TypeConverter;
/** @author andrew00x */
public class PairConverter extends AbstractModule implements TypeConverter {
@Override
public Object convert(String value, TypeLiteral<?> toType) {
return fromString(value);
}
static Pair<String, String> fromString(String value) {
final int p = value.indexOf('=');
if (p < 0) {
return Pair.of(value, null);
}
final int length = value.length();
if (p == length) {
return Pair.of(value.substring(0, p), "");
}
return Pair.of(value.substring(0, p), value.substring(p + 1, length));
}
@Override
protected void configure() {
convertToTypes(Matchers.only(new StringPairTypeLiteral()), this);
}
private static class StringPairTypeLiteral extends TypeLiteral<Pair<String, String>> {
}
}