org.wildfly.client.config.XMLLocation Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2015 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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.wildfly.client.config;
import static java.lang.Integer.signum;
import java.net.URI;
import javax.xml.stream.Location;
/**
* An XML location which is readable by humans and which understands XInclude.
*
* @author David M. Lloyd
*/
public final class XMLLocation implements Location, Comparable {
/**
* An unknown location.
*/
public static final XMLLocation UNKNOWN = new XMLLocation(null, -1, -1, -1);
private final XMLLocation includedFrom;
private final URI uri;
private final int lineNumber;
private final int columnNumber;
private final int characterOffset;
private final String publicId;
private final String systemId;
private int hashCode;
/**
* Construct a new instance.
*
* @param includedFrom the source location that this location was included from
* @param uri the source location (may be {@code null} if not known)
* @param lineNumber the line number (may be {@code -1} if not known)
* @param columnNumber the column number (may be {@code -1} if not known)
* @param characterOffset the character offset (may be {@code -1} if not known)
* @param publicId the XML public ID (may be {@code null})
* @param systemId the XML system ID (may be {@code null})
*/
public XMLLocation(final XMLLocation includedFrom, final URI uri, final int lineNumber, final int columnNumber, final int characterOffset, final String publicId, final String systemId) {
this.includedFrom = includedFrom;
this.uri = uri;
this.lineNumber = lineNumber;
this.columnNumber = columnNumber;
this.characterOffset = characterOffset;
this.publicId = publicId;
this.systemId = systemId;
}
/**
* Construct a new instance.
*
* @param uri the source location (may be {@code null} if not known)
* @param lineNumber the line number (may be {@code -1} if not known)
* @param columnNumber the column number (may be {@code -1} if not known)
* @param characterOffset the character offset (may be {@code -1} if not known)
* @param publicId the XML public ID (may be {@code null})
* @param systemId the XML system ID (may be {@code null})
*/
public XMLLocation(final URI uri, final int lineNumber, final int columnNumber, final int characterOffset, final String publicId, final String systemId) {
this(null, uri, lineNumber, columnNumber, characterOffset, null, null);
}
/**
* Construct a new instance.
*
* @param includedFrom the source location that this location was included from
* @param uri the source location (may be {@code null} if not known)
* @param lineNumber the line number (may be {@code -1} if not known)
* @param columnNumber the column number (may be {@code -1} if not known)
* @param characterOffset the character offset (may be {@code -1} if not known)
*/
public XMLLocation(final XMLLocation includedFrom, final URI uri, final int lineNumber, final int columnNumber, final int characterOffset) {
this(includedFrom, uri, lineNumber, columnNumber, characterOffset, null, null);
}
/**
* Construct a new instance.
*
* @param uri the source location (may be {@code null} if not known)
* @param lineNumber the line number (may be {@code -1} if not known)
* @param columnNumber the column number (may be {@code -1} if not known)
* @param characterOffset the character offset (may be {@code -1} if not known)
*/
public XMLLocation(final URI uri, final int lineNumber, final int columnNumber, final int characterOffset) {
this(uri, lineNumber, columnNumber, characterOffset, null, null);
}
/**
* Construct a new instance.
*
* @param uri the file name (may be {@code null} if this location does not correspond to a file)
*/
public XMLLocation(final URI uri) {
this(uri, -1, -1, -1);
}
/**
* Construct a new instance.
*
* @param uri the file name (may be {@code null} if this location does not correspond to a file)
* @param original the location to copy the remainder of the information from
*/
XMLLocation(final XMLLocation includedFrom, final URI uri, final Location original) {
this(includedFrom, uri, original.getLineNumber(), original.getColumnNumber(), original.getCharacterOffset(), original.getPublicId(), original.getSystemId());
}
/**
* Construct a new instance.
*
* @param uri the file name (may be {@code null} if this location does not correspond to a file)
* @param original the location to copy the remainder of the information from
*/
XMLLocation(final URI uri, final Location original) {
this(uri, original.getLineNumber(), original.getColumnNumber(), original.getCharacterOffset(), original.getPublicId(), original.getSystemId());
}
/**
* Construct a new instance.
*
* @param original the location to copy the remainder of the information from
*/
XMLLocation(final Location original) {
this(original instanceof XMLLocation ? ((XMLLocation)original).getUri() : null, original.getLineNumber(), original.getColumnNumber(), original.getCharacterOffset(), original.getPublicId(), original.getSystemId());
}
/**
* Get the file name. May be {@code null} if this location does not correspond to a file.
*
* @return the file name
*/
public URI getUri() {
return uri;
}
/**
* Get the line number where the corresponding event ends. Returns -1 if not known.
*
* @return the line number where the corresponding event ends
*/
public int getLineNumber() {
return lineNumber;
}
/**
* Get the column number where the corresponding event ends. Returns -1 if not known.
*
* @return the column number where the corresponding event ends
*/
public int getColumnNumber() {
return columnNumber;
}
/**
* Get the absolute character offset of this event. Returns -1 if not known.
*
* @return the absolute character offset of this event
*/
public int getCharacterOffset() {
return characterOffset;
}
/**
* Get the public ID of the XML. Returns {@code null} if not known.
*
* @return the public ID of the XML
*/
public String getPublicId() {
return publicId;
}
/**
* Get the system ID of the XML. Returns {@code null} if not known.
*
* @return the system ID of the XML
*/
public String getSystemId() {
return systemId;
}
/**
* Get the location that this location was included from. Returns {@code null} if this was the root document.
*
* @return the location that this location was included from, or {@code null}
*/
public XMLLocation getIncludedFrom() {
return includedFrom;
}
public static XMLLocation toXMLLocation(final Location location) {
return toXMLLocation((URI) null, location);
}
public static XMLLocation toXMLLocation(final URI uri, final Location location) {
if (location instanceof XMLLocation) {
return (XMLLocation) location;
} else if (location == null) {
return UNKNOWN;
} else {
return new XMLLocation(uri, location);
}
}
public static XMLLocation toXMLLocation(final XMLLocation includedFrom, final Location location) {
return toXMLLocation(includedFrom, null, location);
}
public static XMLLocation toXMLLocation(final XMLLocation includedFrom, final URI uri, final Location location) {
if (location instanceof XMLLocation) {
return (XMLLocation) location;
} else if (location == null) {
return UNKNOWN;
} else {
return new XMLLocation(includedFrom, uri, location);
}
}
public int hashCode() {
int result = hashCode;
if (result == 0) {
if (includedFrom != null) result = includedFrom.hashCode;
result = 31 * result + (uri != null ? uri.hashCode() : 0);
result = 31 * result + lineNumber;
result = 31 * result + columnNumber;
result = 31 * result + characterOffset;
result = 31 * result + (publicId != null ? publicId.hashCode() : 0);
result = 31 * result + (systemId != null ? systemId.hashCode() : 0);
if (result == 0) result = -1;
hashCode = result;
}
return result;
}
/**
* Determine whether this object is equal to another.
*
* @param other the other object
* @return {@code true} if they are equal, {@code false} otherwise
*/
public boolean equals(Object other) {
return other instanceof XMLLocation && equals((XMLLocation)other);
}
private static boolean equals(Object a, Object b) {
return a == b || a == null ? b == null : a.equals(b);
}
/**
* Determine whether this object is equal to another.
*
* @param other the other object
* @return {@code true} if they are equal, {@code false} otherwise
*/
public boolean equals(XMLLocation other) {
return this == other || other != null && equals(includedFrom, other.includedFrom) && equals(uri, other.uri) && lineNumber == other.lineNumber && columnNumber == other.columnNumber && characterOffset == other.characterOffset && equals(publicId, other.publicId) && equals(systemId, other.systemId);
}
/**
* Get the location as a string. The string will be suitable for immediately prefixing an error message.
*
* @return the location as a string
*/
public String toString() {
final StringBuilder b = new StringBuilder();
toString(b);
return b.toString();
}
private void toString(final StringBuilder b) {
b.append("\n\tat ").append(uri == null ? "" : uri);
if (lineNumber > 0) {
b.append(':').append(lineNumber);
if (columnNumber > 0) {
b.append(':').append(columnNumber);
}
}
if (includedFrom != null) {
includedFrom.toString(b);
}
}
private int compareUri(URI a, URI b) {
return a == null ? b == null ? 0 : 1 : b == null ? -1 : a.compareTo(b);
}
/**
* Compare for sort.
*
* @param o the other location
* @return the sort result (-1, 0, or 1)
*/
public int compareTo(final XMLLocation o) {
int c;
c = compareUri(uri, o.uri);
if (c == 0) {
c = signum(lineNumber - o.lineNumber);
if (c == 0) {
c = signum(columnNumber - o.columnNumber);
if (c == 0) {
c = signum(characterOffset - o.characterOffset);
}
}
}
return c;
}
}