/*
* ModeShape (http://www.modeshape.org)
*
* 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 org.modeshape.connector.git;
import org.modeshape.common.annotation.Immutable;
/**
*
*/
@Immutable
public final class CallSpecification {
protected static final String DELIMITER_STR = "/";
protected static final char DELIMITER = DELIMITER_STR.charAt(0);
private final String id;
private final String[] parts;
private final int numParts;
private final int parameterCount;
public CallSpecification( String id ) {
this.id = id;
String relative = id.replaceFirst("^[/]", "");
this.parts = relative.split("/");
this.numParts = this.parts.length;
this.parameterCount = numParts - 1;
assert this.numParts > 0;
}
public String getFunctionName() {
return this.parts[0];
}
/**
* The identifier of this call.
*
* @return the identifier; never null
*/
public String getId() {
return id;
}
public int parameterCount() {
return parameterCount;
}
/**
* Get the specified parameter.
*
* @param index the 0-based index of the parameter, excluding the first segment that is the name
* @return the parameter
*/
public String parameter( int index ) {
return parts[index + 1];
}
public String parametersAsPath( int fromIndex ) {
return parametersAsPath(fromIndex, numParts);
}
public String parametersAsPath( int fromIndex,
int toIndex ) {
++fromIndex; // ignore the name
assert fromIndex < numParts;
assert toIndex <= numParts;
StringBuilder sb = new StringBuilder();
for (int i = fromIndex; i != toIndex; ++i) {
sb.append(DELIMITER);
sb.append(parts[i]);
}
return sb.toString();
}
public String lastParameter() {
if (numParts == 0) return null;
return this.parts[numParts - 1];
}
public String childId( String childPart ) {
return id + DELIMITER + childPart;
}
public String getParentId() {
if (numParts == 0) {
// There is no parent ...
return "";
}
if (numParts == 1) {
// The parent is the root ...
return GitRoot.ID;
}
StringBuilder sb = new StringBuilder();
int length = numParts - 1;
for (int i = 0; i != length; ++i) {
String part = parts[i];
sb.append(DELIMITER);
sb.append(part);
}
return sb.toString();
}
@Override
public String toString() {
return id;
}
}