/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.isis.core.metamodel.facets.members.disabled;
import com.google.common.base.Strings;
import org.apache.isis.applib.annotation.When;
import org.apache.isis.applib.annotation.Where;
import org.apache.isis.core.metamodel.adapter.ObjectAdapter;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
public abstract class DisabledFacetAbstractImpl extends DisabledFacetAbstract {
private final String reason;
public DisabledFacetAbstractImpl(final When when, final Where where, final FacetHolder holder) {
this(when, where, null, holder);
}
public DisabledFacetAbstractImpl(final When when, final Where where, final FacetHolder holder, final Semantics semantics) {
this(when, where, null, holder, semantics);
}
public DisabledFacetAbstractImpl(final When when, final Where where, final String reason, final FacetHolder holder) {
super(when, where, holder);
this.reason = reason;
}
public DisabledFacetAbstractImpl(final When when, final Where where, final String reason, final FacetHolder holder, final Semantics semantics) {
super(when, where, holder, semantics);
this.reason = reason;
}
@Override
public String disabledReason(final ObjectAdapter targetAdapter) {
if (when() == When.ALWAYS) {
return disabledReasonElse("Always disabled");
} else if (when() == When.NEVER) {
return null;
}
// remaining tests depend upon the actual target in question
if (targetAdapter == null) {
return null;
}
if (when() == When.UNTIL_PERSISTED) {
return targetAdapter.isTransient() ? disabledReasonElse("Disabled until persisted") : null;
} else if (when() == When.ONCE_PERSISTED) {
return targetAdapter.representsPersistent() ? disabledReasonElse("Disabled once persisted") : null;
}
return null;
}
private String disabledReasonElse(final String defaultReason) {
return !Strings.isNullOrEmpty(reason) ? reason : defaultReason;
}
/**
* Not API... the reason as defined in subclass
*/
public String getReason() {
return reason;
}
}