/*
* RHQ Management Platform
* Copyright (C) 2010 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.server.search.translation;
import org.rhq.core.domain.auth.Subject;
import org.rhq.enterprise.server.search.SearchExpressionException;
import org.rhq.enterprise.server.search.translation.antlr.RHQLComparisonOperator;
import org.rhq.enterprise.server.util.LookupUtil;
/**
* @author Joseph Marques
*/
public abstract class AbstractSearchTranslator implements SearchTranslator {
private int subjectId;
private boolean requiresAuthorizationFragment;
public AbstractSearchTranslator(Subject subject) {
this.subjectId = subject.getId();
this.requiresAuthorizationFragment = !LookupUtil.getAuthorizationManager().isInventoryManager(subject);
}
public int getSubjectId() {
return subjectId;
}
public boolean requiresAuthorizationFragment() {
return requiresAuthorizationFragment;
}
protected final String conditionallyAddAuthzFragment(String fragment) {
if (requiresAuthorizationFragment == false) {
return "";
}
return " AND " + fragment;
}
protected String getJPQLForEnum(String fragment, RHQLComparisonOperator operator, String value,
Class<? extends Enum<?>> enumClass, boolean useOrdinal) {
if (operator == RHQLComparisonOperator.NULL || //
operator == RHQLComparisonOperator.NOT_NULL) {
return fragment + operator.getDefaultTranslation();
} else if (operator == RHQLComparisonOperator.EQUALS || //
operator == RHQLComparisonOperator.EQUALS_STRICT || //
operator == RHQLComparisonOperator.NOT_EQUALS || //
operator == RHQLComparisonOperator.NOT_EQUALS_STRICT) {
return fragment + operator.getDefaultTranslation() + getEnum(enumClass, value, useOrdinal);
} else {
throw new SearchExpressionException("Unsupported operator " + operator);
}
}
private String getEnum(Class<? extends Enum<?>> enumClass, String value, boolean useOrdinal) {
value = value.toLowerCase();
for (Enum<?> nextEnum : enumClass.getEnumConstants()) {
if (nextEnum.name().toLowerCase().equals(value)) {
if (useOrdinal) {
return String.valueOf(nextEnum.ordinal());
} else {
return quote(nextEnum.name());
}
}
}
throw new SearchExpressionException("No enum of type '" + enumClass.getSimpleName() + "' with name matching '"
+ value + "'");
}
protected String quote(String data) {
return "'" + data + "'";
}
protected final String addFragmentIfParameterNotValue(String fragment, String parameter, String value) {
if (!parameter.equalsIgnoreCase(value)) {
return fragment;
}
return "";
}
}