org.wicketstuff.mergedresources.ResourceSpec Maven / Gradle / Ivy
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Resource merging for Apache Wicket (http://wicket.apache.org),
see http://talk-on-tech.blogspot.com/2008/08/wicket-interface-speed-up-merging.html
/**
* Copyright 2010 Molindo GmbH
*
* 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.wicketstuff.mergedresources;
import java.util.Arrays;
import java.util.Locale;
import org.apache.wicket.IClusterable;
import org.apache.wicket.ResourceReference;
import org.apache.wicket.WicketRuntimeException;
import org.apache.wicket.util.string.Strings;
import edu.umd.cs.findbugs.annotations.SuppressWarnings;
public class ResourceSpec implements IClusterable {
private static final long serialVersionUID = 1L;
private final String _scopeName;
@SuppressWarnings(value = "SE_TRANSIENT_FIELD_NOT_RESTORED", justification = "set from scopeName on demand")
private transient Class _scope;
private final String _file;
private final ResourceReference _ref;
private final Locale _locale;
private final String _style;
private final Integer _cacheDuration;
public static ResourceSpec[] toResourceSpecs(Class[] scopes, String[] files) {
if (scopes.length != files.length) {
throw new IllegalArgumentException("arrays must be of equal length: " + Arrays.toString(scopes) + ", "
+ Arrays.toString(files));
}
ResourceSpec[] resourceSpecs = new ResourceSpec[scopes.length];
for (int i = 0; i < scopes.length; i++) {
resourceSpecs[i] = new ResourceSpec(scopes[i], files[i]);
}
return resourceSpecs;
}
public static Class[] toScopes(ResourceSpec[] specs) {
Class[] scopes = new Class[specs.length];
for (int i = 0; i < specs.length; i++) {
scopes[i] = specs[i].getScope();
}
return scopes;
}
public static String[] toFiles(ResourceSpec[] specs) {
String[] files = new String[specs.length];
for (int i = 0; i < specs.length; i++) {
files[i] = specs[i].getFile();
}
return files;
}
public ResourceSpec(Class scope, String file) {
this(scope, file, null, null, null, null);
}
public ResourceSpec(Class scope, String file, Locale locale) {
this(scope, file, locale, null, null, null);
}
public ResourceSpec(Class scope, String file, String style) {
this(scope, file, null, style, null, null);
}
public ResourceSpec(Class scope, String file, Locale locale, String style) {
this(scope, file, locale, style, null, null);
}
public ResourceSpec(Class scope, String file, Integer cacheDuration) {
this(scope, file, null, null, cacheDuration, null);
}
public ResourceSpec(Class scope, String file, Locale locale, Integer cacheDuration) {
this(scope, file, locale, null, cacheDuration, null);
}
public ResourceSpec(Class scope, String file, String style, Integer cacheDuration) {
this(scope, file, null, style, cacheDuration, null);
}
public ResourceSpec(Class scope, String file, Locale locale, String style, Integer cacheDuration) {
this(scope, file, locale, style, cacheDuration, null);
}
public ResourceSpec(ResourceReference ref) {
this(ref.getScope(), ref.getName(), ref.getLocale(), ref.getStyle(), null, ref);
}
private ResourceSpec(Class scope, String file, Locale locale, String style, Integer cacheDuration,
ResourceReference ref) {
if (scope == null) {
throw new NullPointerException("scope");
}
if (file == null) {
throw new NullPointerException("file");
}
if (file.startsWith("/")) {
throw new IllegalArgumentException("file must not start with '/', was '" + file + "'");
}
if (Strings.isEmpty(file)) {
throw new IllegalArgumentException("file must not be empty");
}
_scope = scope;
_scopeName = _scope.getName();
_file = file;
_locale = locale;
_style = style;
_cacheDuration = cacheDuration;
_ref = ref;
}
public Class getScope() {
if (_scope == null) {
try {
_scope = Class.forName(_scopeName);
} catch (ClassNotFoundException e) {
throw new WicketRuntimeException("failed to get scope class by name", e);
}
}
return _scope;
}
/**
* @return file name, never starting with
*/
public String getFile() {
return _file;
}
/**
* @return might return null
*/
public Locale getLocale() {
return _locale;
}
/**
* @return might return null
*/
public String getStyle() {
return _style;
}
/**
* @return might return null or the max cache duration in seconds
*/
public Integer getCacheDuration() {
return _cacheDuration;
}
/**
* @return {@link ResourceReference} that was used to construct this spec or
* null
*/
public ResourceReference getRef() {
return _ref;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + _file.hashCode();
result = prime * result + _scopeName.hashCode();
result = prime * result + (_locale == null ? 0 : _locale.hashCode());
result = prime * result + (_style == null ? 0 : _style.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof ResourceSpec)) {
return false;
}
ResourceSpec other = (ResourceSpec) obj;
if (!_file.equals(other._file)) {
return false;
}
if (!_scopeName.equals(other._scopeName)) {
return false;
}
if (_locale == null) {
if (other._locale != null) {
return false;
}
} else if (!_locale.equals(other._locale)) {
return false;
}
if (_style == null) {
if (other._style != null) {
return false;
}
} else if (!_style.equals(other._style)) {
return false;
}
return true;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("ResourceSpec [");
if (_ref != null) {
builder.append("ref=").append(_ref);
} else {
builder.append("file=").append(_file).append(", ");
builder.append("scopeName=").append(_scopeName).append(", ");
if (_locale != null) {
builder.append("locale=").append(_locale).append(", ");
}
if (_style != null) {
builder.append("style=").append(_style).append(", ");
}
if (_cacheDuration != null) {
builder.append("cacheDuration=").append(_cacheDuration).append(", ");
}
builder.setLength(builder.length() - 2);
builder.append("]");
}
return builder.toString();
}
}