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/**
* 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.cxf.jaxrs.impl;
import java.lang.reflect.Method;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.ws.rs.Path;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.PathSegment;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriBuilderException;
import org.apache.cxf.jaxrs.model.URITemplate;
import org.apache.cxf.jaxrs.utils.HttpUtils;
import org.apache.cxf.jaxrs.utils.JAXRSUtils;
public class UriBuilderImpl extends UriBuilder {
private String scheme;
private String userInfo;
private int port = -1;
private String host;
private List paths = new ArrayList();
private boolean leadingSlash;
private String fragment;
private String schemeSpecificPart;
private MultivaluedMap query = new MetadataMap();
private MultivaluedMap matrix = new MetadataMap();
/**
* Creates builder with empty URI.
*/
public UriBuilderImpl() {
}
/**
* Creates builder initialized with given URI.
*
* @param uri initial value for builder
* @throws IllegalArgumentException when uri is null
*/
public UriBuilderImpl(URI uri) throws IllegalArgumentException {
setUriParts(uri);
}
@Override
public URI build(Object... values) throws IllegalArgumentException, UriBuilderException {
return doBuild(false, values);
}
private URI doBuild(boolean fromEncoded, Object... values) {
String thePath = buildPath(fromEncoded);
URITemplate pathTempl = new URITemplate(thePath);
thePath = substituteVarargs(pathTempl, values, 0);
String theQuery = buildQuery(fromEncoded);
int queryTemplateVarsSize = 0;
if (theQuery != null) {
URITemplate queryTempl = new URITemplate(theQuery);
int lengthDiff = values.length - pathTempl.getVariables().size();
if (lengthDiff > 0) {
queryTemplateVarsSize = queryTempl.getVariables().size();
theQuery = substituteVarargs(queryTempl, values, values.length - lengthDiff);
}
}
String theFragment = fragment;
if (theFragment != null) {
URITemplate fragmentTempl = new URITemplate(theFragment);
int lengthDiff = values.length - pathTempl.getVariables().size() - queryTemplateVarsSize;
if (lengthDiff > 0) {
theFragment = substituteVarargs(fragmentTempl, values, values.length - lengthDiff);
}
}
try {
return buildURI(fromEncoded, thePath, theQuery, theFragment);
} catch (URISyntaxException ex) {
throw new UriBuilderException("URI can not be built", ex);
}
}
private URI buildURI(boolean fromEncoded, String thePath, String theQuery, String theFragment)
throws URISyntaxException {
if (fromEncoded) {
return buildURIFromEncoded(thePath, theQuery, theFragment);
} else if (!isSchemeOpaque()) {
if ((scheme != null || host != null || userInfo != null)
&& thePath.length() != 0 && !thePath.startsWith("/")) {
thePath = "/" + thePath;
}
if (theQuery != null && HttpUtils.isPartiallyEncoded(theQuery)) {
try {
return buildURIFromEncoded(thePath, theQuery, theFragment);
} catch (Exception ex) {
// lets try the option below
}
}
URI uri = new URI(scheme, userInfo, host, port,
thePath, theQuery, theFragment);
if (thePath.contains("%2F")) {
// TODO: the bogus case of segments containing encoded '/'
// Not sure if we have a cleaner solution though.
String realPath = uri.getRawPath().replace("%252F", "%2F");
uri = buildURIFromEncoded(realPath, uri.getRawQuery(), uri.getRawFragment());
}
return uri;
} else {
return new URI(scheme, schemeSpecificPart, theFragment);
}
}
private URI buildURIFromEncoded(String thePath, String theQuery, String theFragment)
throws URISyntaxException {
StringBuilder b = new StringBuilder();
if (scheme != null) {
b.append(scheme).append(":");
}
if (!isSchemeOpaque()) {
if (scheme != null) {
b.append("//");
}
if (userInfo != null) {
b.append(userInfo).append('@');
}
if (host != null) {
b.append(host);
}
if (port != -1) {
b.append(':').append(port);
}
if (thePath != null && thePath.length() > 0) {
b.append(thePath.startsWith("/") || b.length() == 0 ? thePath : '/' + thePath);
}
if (theQuery != null && theQuery.length() != 0) {
b.append('?').append(theQuery);
}
} else {
b.append(schemeSpecificPart);
}
if (theFragment != null) {
b.append('#').append(theFragment);
}
return new URI(b.toString());
}
private boolean isSchemeOpaque() {
return schemeSpecificPart != null;
}
private String substituteVarargs(URITemplate templ, Object[] values, int ind) {
Map varValueMap = new HashMap();
// vars in set are properly ordered due to linking in hash set
Set uniqueVars = new LinkedHashSet(templ.getVariables());
if (values.length < uniqueVars.size()) {
throw new IllegalArgumentException("Unresolved variables; only " + values.length
+ " value(s) given for " + uniqueVars.size()
+ " unique variable(s)");
}
int idx = ind;
for (String var : uniqueVars) {
Object oval = values[idx++];
if (oval == null) {
throw new IllegalArgumentException("No object for " + var);
}
varValueMap.put(var, oval.toString());
}
return templ.substitute(varValueMap);
}
@Override
public URI buildFromEncoded(Object... values) throws IllegalArgumentException, UriBuilderException {
// Problem: multi-arg URI c-tor always forces encoding, operation contract would be broken;
// use os single-arg URI c-tor requires unnecessary concatenate-parse roundtrip.
// While decoding back given values and passing as non-decoded to regular build() method
// is promising unfortunatley it causes the loss of encoded reserved values such as +,
// which might cause problems if consumers do rely on URLEncoder which would turn '+' into
// ' ' or would break the contract in when query parameters are expected to have %2B
if (values == null) {
throw new IllegalArgumentException("Template parameter values are set to null");
}
for (int i = 0; i < values.length; i++) {
if (values[i] == null) {
throw new IllegalArgumentException("Template parameter value is set to null");
}
values[i] = HttpUtils.encodePartiallyEncoded(values[i].toString(), false);
}
return doBuild(true, values);
}
@Override
public URI buildFromMap(Map map) throws IllegalArgumentException,
UriBuilderException {
return doBuildFromMap(map, false);
}
private URI doBuildFromMap(Map map, boolean fromEncoded)
throws IllegalArgumentException, UriBuilderException {
try {
String thePath = buildPath(fromEncoded);
thePath = substituteMapped(thePath, map);
String theQuery = buildQuery(fromEncoded);
if (theQuery != null) {
theQuery = substituteMapped(theQuery, map);
}
String theFragment = fragment == null ? null : substituteMapped(fragment, map);
return buildURI(fromEncoded, thePath, theQuery, theFragment);
} catch (URISyntaxException ex) {
throw new UriBuilderException("URI can not be built", ex);
}
}
private String substituteMapped(String path, Map varValueMap) {
URITemplate templ = new URITemplate(path);
Set uniqueVars = new HashSet(templ.getVariables());
if (varValueMap.size() < uniqueVars.size()) {
throw new IllegalArgumentException("Unresolved variables; only " + varValueMap.size()
+ " value(s) given for " + uniqueVars.size()
+ " unique variable(s)");
}
return templ.substitute(varValueMap);
}
@Override
public URI buildFromEncodedMap(Map map) throws IllegalArgumentException,
UriBuilderException {
Map decodedMap = new HashMap(map.size());
for (Map.Entry entry : map.entrySet()) {
if (entry.getValue() == null) {
throw new IllegalArgumentException("Value is null");
}
String theValue = entry.getValue().toString();
if (theValue.contains("/")) {
// protecting '/' from being encoded here assumes that a given value may constitute multiple
// path segments - very questionable especially given that queries and fragments may also
// contain template vars - technically this can be covered by checking where a given template
// var is coming from and act accordingly. Confusing nonetheless.
StringBuilder buf = new StringBuilder();
String[] values = theValue.split("/");
for (int i = 0; i < values.length; i++) {
buf.append(HttpUtils.encodePartiallyEncoded(values[i], false));
if (i + 1 < values.length) {
buf.append("/");
}
}
decodedMap.put(entry.getKey(), buf.toString());
} else {
decodedMap.put(entry.getKey(), HttpUtils.encodePartiallyEncoded(theValue, false));
}
}
return doBuildFromMap(decodedMap, true);
}
// CHECKSTYLE:OFF
@Override
public UriBuilder clone() {
UriBuilderImpl builder = new UriBuilderImpl();
builder.scheme = scheme;
builder.userInfo = userInfo;
builder.port = port;
builder.host = host;
builder.paths = new ArrayList(paths);
builder.fragment = fragment;
builder.query = new MetadataMap(query);
builder.matrix = new MetadataMap(matrix);
builder.schemeSpecificPart = schemeSpecificPart;
builder.leadingSlash = leadingSlash;
return builder;
}
// CHECKSTYLE:ON
@Override
public UriBuilder fragment(String theFragment) throws IllegalArgumentException {
this.fragment = theFragment;
return this;
}
@Override
public UriBuilder host(String theHost) throws IllegalArgumentException {
if ("".equals(theHost)) {
throw new IllegalArgumentException("Host cannot be empty");
}
this.host = theHost;
return this;
}
@Override
public UriBuilder path(Class resource) throws IllegalArgumentException {
if (resource == null) {
throw new IllegalArgumentException("resource is null");
}
Class cls = resource;
Path ann = cls.getAnnotation(Path.class);
if (ann == null) {
throw new IllegalArgumentException("Class '" + resource.getCanonicalName()
+ "' is not annotated with Path");
}
// path(String) decomposes multi-segment path when necessary
return path(ann.value());
}
@Override
public UriBuilder path(Class resource, String method) throws IllegalArgumentException {
if (resource == null) {
throw new IllegalArgumentException("resource is null");
}
if (method == null) {
throw new IllegalArgumentException("method is null");
}
Path foundAnn = null;
for (Method meth : resource.getMethods()) {
if (meth.getName().equals(method)) {
Path ann = meth.getAnnotation(Path.class);
if (foundAnn != null && ann != null) {
throw new IllegalArgumentException("Multiple Path annotations for '" + method
+ "' overloaded method");
}
foundAnn = ann;
}
}
if (foundAnn == null) {
throw new IllegalArgumentException("No Path annotation for '" + method + "' method");
}
// path(String) decomposes multi-segment path when necessary
return path(foundAnn.value());
}
@Override
public UriBuilder path(Method method) throws IllegalArgumentException {
if (method == null) {
throw new IllegalArgumentException("method is null");
}
Path ann = method.getAnnotation(Path.class);
if (ann == null) {
throw new IllegalArgumentException("Method '" + method.getClass().getCanonicalName() + "."
+ method.getName() + "' is not annotated with Path");
}
// path(String) decomposes multi-segment path when necessary
return path(ann.value());
}
@Override
public UriBuilder path(String path) throws IllegalArgumentException {
return doPath(path, true);
}
private UriBuilder doPath(String path, boolean checkSegments) {
if (path == null) {
throw new IllegalArgumentException("path is null");
}
// this is the cheapest way to figure out if a given path is a full-fledged
// URI with the http(s) scheme but a more formal approach may be needed
if (path.startsWith("http")) {
uri(URI.create(path));
return this;
}
if (paths.isEmpty()) {
leadingSlash = path.startsWith("/");
}
List segments;
if (checkSegments) {
segments = JAXRSUtils.getPathSegments(path, false, false);
} else {
segments = new ArrayList();
segments.add(new PathSegmentImpl(path.replaceAll("/", "%2F"), false));
}
if (!paths.isEmpty() && !matrix.isEmpty()) {
PathSegment ps = paths.remove(paths.size() - 1);
paths.add(replacePathSegment(ps));
}
paths.addAll(segments);
matrix.clear();
if (!paths.isEmpty()) {
matrix = paths.get(paths.size() - 1).getMatrixParameters();
}
return this;
}
@Override
public UriBuilder port(int thePort) throws IllegalArgumentException {
if (thePort < 0 && thePort != -1) {
throw new IllegalArgumentException("Port cannot be negative");
}
this.port = thePort;
return this;
}
@Override
public UriBuilder scheme(String s) throws IllegalArgumentException {
scheme = s;
return this;
}
@Override
public UriBuilder schemeSpecificPart(String ssp) throws IllegalArgumentException {
// scheme-specific part is whatever after ":" of URI
// see: http://en.wikipedia.org/wiki/URI_scheme
try {
if (scheme == null) {
scheme = "http";
}
URI uri = new URI(scheme, ssp, fragment);
setUriParts(uri);
} catch (URISyntaxException e) {
throw new IllegalArgumentException("Wrong syntax of scheme-specific part", e);
}
return this;
}
@Override
public UriBuilder uri(URI uri) throws IllegalArgumentException {
setUriParts(uri);
return this;
}
@Override
public UriBuilder userInfo(String ui) throws IllegalArgumentException {
this.userInfo = ui;
return this;
}
private void setUriParts(URI uri) {
if (uri == null) {
throw new IllegalArgumentException("uri is null");
}
String theScheme = uri.getScheme();
if (theScheme != null) {
scheme = theScheme;
}
String rawPath = uri.getRawPath();
if (!uri.isOpaque()
&& (theScheme != null || rawPath != null && rawPath.startsWith("/"))) {
port = uri.getPort();
host = uri.getHost();
if (rawPath != null) {
setPathAndMatrix(uri.getRawPath());
}
String rawQuery = uri.getRawQuery();
if (rawQuery != null) {
query = JAXRSUtils.getStructuredParams(rawQuery, "&", false, false);
}
userInfo = uri.getUserInfo();
schemeSpecificPart = null;
} else {
schemeSpecificPart = uri.getSchemeSpecificPart();
}
String theFragment = uri.getFragment();
if (theFragment != null) {
fragment = theFragment;
}
}
private void setPathAndMatrix(String path) {
leadingSlash = path.startsWith("/");
paths = JAXRSUtils.getPathSegments(path, false, false);
if (!paths.isEmpty()) {
matrix = paths.get(paths.size() - 1).getMatrixParameters();
} else {
matrix.clear();
}
}
private String buildPath(boolean fromEncoded) {
StringBuilder sb = new StringBuilder();
Iterator iter = paths.iterator();
while (iter.hasNext()) {
PathSegment ps = iter.next();
String p = ps.getPath();
if (p.length() != 0 || !iter.hasNext()) {
p = fromEncoded ? new URITemplate(p).encodeLiteralCharacters() : p;
if (sb.length() == 0 && leadingSlash) {
sb.append('/');
} else if (!p.startsWith("/") && sb.length() > 0) {
sb.append('/');
}
sb.append(p);
if (iter.hasNext()) {
buildMatrix(sb, ps.getMatrixParameters(), fromEncoded);
}
}
}
buildMatrix(sb, matrix, fromEncoded);
return sb.toString();
}
private String buildQuery(boolean fromEncoded) {
return buildParams(query, '&', fromEncoded);
}
@Override
public UriBuilder matrixParam(String name, Object... values) throws IllegalArgumentException {
if (name == null || values == null) {
throw new IllegalArgumentException("name or values is null");
}
List list = matrix.get(name);
if (list == null) {
matrix.put(name, toStringList(values));
} else {
list.addAll(toStringList(values));
}
return this;
}
@Override
public UriBuilder queryParam(String name, Object... values) throws IllegalArgumentException {
if (name == null || values == null) {
throw new IllegalArgumentException("name or values is null");
}
List list = query.get(name);
if (list == null) {
query.put(name, toStringList(values));
} else {
list.addAll(toStringList(values));
}
return this;
}
@Override
public UriBuilder replaceMatrix(String matrixValues) throws IllegalArgumentException {
this.matrix = JAXRSUtils.getStructuredParams(matrixValues, ";", true, false);
return this;
}
@Override
public UriBuilder replaceMatrixParam(String name, Object... values) throws IllegalArgumentException {
if (name == null) {
throw new IllegalArgumentException("name is null");
}
if (values != null && values.length >= 1 && values[0] != null) {
matrix.put(name, toStringList(values));
} else {
matrix.remove(name);
}
return this;
}
@Override
public UriBuilder replacePath(String path) {
if (path == null) {
paths.clear();
matrix.clear();
} else {
setPathAndMatrix(path);
}
return this;
}
@Override
public UriBuilder replaceQuery(String queryValue) throws IllegalArgumentException {
if (queryValue != null) {
// workaround to do with a conflicting and confusing requirement where spaces
// passed as part of replaceQuery are encoded as %20 while those passed as part
// of quertyParam are encoded as '+'
queryValue = queryValue.replace(" ", "%20");
}
query = JAXRSUtils.getStructuredParams(queryValue, "&", false, true);
return this;
}
@Override
public UriBuilder replaceQueryParam(String name, Object... values) throws IllegalArgumentException {
if (name == null) {
throw new IllegalArgumentException("name is null");
}
if (values != null && values.length >= 1 && values[0] != null) {
query.put(name, toStringList(values));
} else {
query.remove(name);
}
return this;
}
@Override
public UriBuilder segment(String... segments) throws IllegalArgumentException {
if (segments == null) {
throw new IllegalArgumentException("Segments should not be null");
}
for (String segment : segments) {
doPath(segment, false);
}
return this;
}
/**
* Query or matrix params convertion from object values vararg to list of strings. No encoding is
* provided.
*
* @param values entry vararg values
* @return list of strings
* @throws IllegalArgumentException when one of values is null
*/
private List toStringList(Object... values) throws IllegalArgumentException {
List list = new ArrayList();
if (values != null) {
for (int i = 0; i < values.length; i++) {
Object value = values[i];
if (value == null) {
throw new IllegalArgumentException("Null value on " + i + " position");
}
list.add(value.toString());
}
}
if (list.isEmpty()) {
list.add("");
}
return list;
}
/**
* Builds param string for query part or matrix part of URI.
*
* @param map query or matrix multivalued map
* @param separator params separator, '&' for query ';' for matrix
* @param fromEncoded if true then values will be decoded
* @return stringified params.
*/
private String buildParams(MultivaluedMap map, char separator,
boolean fromEncoded) {
boolean isQuery = separator == '&';
StringBuilder b = new StringBuilder();
for (Iterator>> it = map.entrySet().iterator(); it.hasNext();) {
Map.Entry> entry = it.next();
for (Iterator sit = entry.getValue().iterator(); sit.hasNext();) {
String val = sit.next();
if (fromEncoded || (isQuery && !val.startsWith("{") && !val.endsWith("}"))) {
val = HttpUtils.encodePartiallyEncoded(val, isQuery);
}
b.append(entry.getKey());
if (val.length() != 0) {
b.append('=').append(val);
}
if (sit.hasNext() || it.hasNext()) {
b.append(separator);
}
}
}
return b.length() > 0 ? b.toString() : null;
}
/**
* Builds param string for matrix part of URI.
*
* @param sb buffer to add the matrix part to, will get ';' added if map is not empty
* @param map matrix multivalued map
*/
private void buildMatrix(StringBuilder sb, MultivaluedMap map,
boolean fromEncoded) {
if (!map.isEmpty()) {
sb.append(';');
sb.append(buildParams(map, ';', fromEncoded));
}
}
private PathSegment replacePathSegment(PathSegment ps) {
StringBuilder sb = new StringBuilder();
sb.append(ps.getPath());
buildMatrix(sb, matrix, false);
return new PathSegmentImpl(sb.toString());
}
}
