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package com.sun.jersey.api.uri;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Method;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;
import java.util.Map;
import javax.ws.rs.Path;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriBuilderException;
/**
* An implementaton of {@link UriBuilder}.
*
* @author [email protected]
*/
public class UriBuilderImpl extends UriBuilder {
// All fields should be in the percent-encoded form
private String scheme;
private String ssp;
private String authority;
private String userInfo;
private String host;
private int port = -1;
private final StringBuilder path;
private MultivaluedMap matrixParams;
private final StringBuilder query;
private MultivaluedMap queryParams;
private String fragment;
public UriBuilderImpl() {
path = new StringBuilder();
query = new StringBuilder();
}
private UriBuilderImpl(UriBuilderImpl that) {
this.scheme = that.scheme;
this.ssp = that.ssp;
this.userInfo = that.userInfo;
this.host = that.host;
this.port = that.port;
this.path = new StringBuilder(that.path);
this.query = new StringBuilder(that.query);
this.fragment = that.fragment;
}
@Override
public UriBuilder clone() {
return new UriBuilderImpl(this);
}
@Override
public UriBuilder uri(URI uri) {
if (uri == null) {
throw new IllegalArgumentException("URI parameter is null");
}
if (uri.getRawFragment() != null) {
fragment = uri.getRawFragment();
}
if (uri.isOpaque()) {
scheme = uri.getScheme();
ssp = uri.getRawSchemeSpecificPart();
return this;
}
if (uri.getScheme() == null) {
if (ssp != null) {
if (uri.getRawSchemeSpecificPart() != null) {
ssp = uri.getRawSchemeSpecificPart();
return this;
}
}
} else {
scheme = uri.getScheme();
}
ssp = null;
if (uri.getRawAuthority() != null) {
if (uri.getRawUserInfo() == null && uri.getHost() == null && uri.getPort() == -1) {
authority = uri.getRawAuthority();
userInfo = null;
host = null;
port = -1;
} else {
authority = null;
if (uri.getRawUserInfo() != null) {
userInfo = uri.getRawUserInfo();
}
if (uri.getHost() != null) {
host = uri.getHost();
}
if (uri.getPort() != -1) {
port = uri.getPort();
}
}
}
if (uri.getRawPath() != null && uri.getRawPath().length() > 0) {
path.setLength(0);
path.append(uri.getRawPath());
}
if (uri.getRawQuery() != null && uri.getRawQuery().length() > 0) {
query.setLength(0);
query.append(uri.getRawQuery());
}
return this;
}
@Override
public UriBuilder scheme(String scheme) {
if (scheme != null) {
this.scheme = scheme;
UriComponent.validate(scheme, UriComponent.Type.SCHEME, true);
} else {
this.scheme = null;
}
return this;
}
@Override
public UriBuilder schemeSpecificPart(String ssp) {
if (ssp == null) {
throw new IllegalArgumentException("Scheme specific part parameter is null");
}
// TODO encode or validate scheme specific part
// This will not work for template variables present in the spp
StringBuilder sb = new StringBuilder();
if (scheme != null) {
sb.append(scheme).append(':');
}
if (ssp != null) {
sb.append(ssp);
}
if (fragment != null && fragment.length() > 0) {
sb.append('#').append(fragment);
}
URI uri = createURI(sb.toString());
if (uri.getRawSchemeSpecificPart() != null && uri.getRawPath() == null) {
this.ssp = uri.getRawSchemeSpecificPart();
} else {
this.ssp = null;
if (uri.getRawAuthority() != null) {
if (uri.getRawUserInfo() == null && uri.getHost() == null && uri.getPort() == -1) {
authority = uri.getRawAuthority();
userInfo = null;
host = null;
port = -1;
} else {
authority = null;
userInfo = uri.getRawUserInfo();
host = uri.getHost();
port = uri.getPort();
}
}
path.setLength(0);
path.append(replaceNull(uri.getRawPath()));
query.setLength(0);
query.append(replaceNull(uri.getRawQuery()));
}
return this;
}
@Override
public UriBuilder userInfo(String ui) {
checkSsp();
this.userInfo = (ui != null)
? encode(ui, UriComponent.Type.USER_INFO) : null;
return this;
}
@Override
public UriBuilder host(String host) {
checkSsp();
if (host != null) {
if (host.length() == 0) // null is used to reset host setting
{
throw new IllegalArgumentException("Invalid host name");
}
this.host = encode(host, UriComponent.Type.HOST);
} else {
this.host = null;
}
return this;
}
@Override
public UriBuilder port(int port) {
checkSsp();
if (port < -1) // -1 is used to reset port setting and since URI allows
// as port any positive integer, so do we.
{
throw new IllegalArgumentException("Invalid port value");
}
this.port = port;
return this;
}
@Override
public UriBuilder replacePath(String path) {
checkSsp();
this.path.setLength(0);
if (path != null) {
appendPath(path);
}
return this;
}
@Override
public UriBuilder path(String path) {
checkSsp();
appendPath(path);
return this;
}
@Override
public UriBuilder path(Class resource) {
checkSsp();
if (resource == null) {
throw new IllegalArgumentException("Resource parameter is null");
}
Class c = resource;
Path p = c.getAnnotation(Path.class);
if (p == null) {
throw new IllegalArgumentException("The class, " + resource + " is not annotated with @Path");
}
appendPath(p);
return this;
}
@Override
public UriBuilder path(Class resource, String methodName) {
checkSsp();
if (resource == null) {
throw new IllegalArgumentException("Resource parameter is null");
}
if (methodName == null) {
throw new IllegalArgumentException("MethodName parameter is null");
}
Method[] methods = resource.getMethods();
Method found = null;
for (Method m : methods) {
if (methodName.equals(m.getName())) {
if (found == null) {
found = m;
} else {
throw new IllegalArgumentException();
}
}
}
if (found == null) {
throw new IllegalArgumentException("The method named, " + methodName
+ ", is not specified by " + resource);
}
appendPath(getPath(found));
return this;
}
@Override
public UriBuilder path(Method method) {
checkSsp();
if (method == null) {
throw new IllegalArgumentException("Method is null");
}
appendPath(getPath(method));
return this;
}
private Path getPath(AnnotatedElement ae) {
Path p = ae.getAnnotation(Path.class);
if (p == null) {
throw new IllegalArgumentException("The annotated element, "
+ ae + " is not annotated with @Path");
}
return p;
}
@Override
public UriBuilder segment(String... segments) throws IllegalArgumentException {
checkSsp();
if (segments == null) {
throw new IllegalArgumentException("Segments parameter is null");
}
for (String segment : segments) {
appendPath(segment, true);
}
return this;
}
@Override
public UriBuilder replaceMatrix(String matrix) {
checkSsp();
int i = path.lastIndexOf("/");
if (i != -1) {
i = 0;
}
i = path.indexOf(";", i);
if (i != -1) {
path.setLength(i + 1);
} else {
path.append(';');
}
if (matrix != null) {
path.append(encode(matrix, UriComponent.Type.PATH));
}
return this;
}
@Override
public UriBuilder matrixParam(String name, Object... values) {
checkSsp();
if (name == null) {
throw new IllegalArgumentException("Name parameter is null");
}
if (values == null) {
throw new IllegalArgumentException("Value parameter is null");
}
if (values.length == 0) {
return this;
}
name = encode(name, UriComponent.Type.MATRIX_PARAM);
if (matrixParams == null) {
for (Object value : values) {
path.append(';').append(name);
if (value == null) {
throw new IllegalArgumentException("One or more of matrix value parameters are null");
}
final String stringValue = value.toString();
if (stringValue.length() > 0) {
path.append('=').append(encode(stringValue, UriComponent.Type.MATRIX_PARAM));
}
}
} else {
for (Object value : values) {
if (value == null) {
throw new IllegalArgumentException("One or more of matrix value parameters are null");
}
matrixParams.add(name, encode(value.toString(), UriComponent.Type.MATRIX_PARAM));
}
}
return this;
}
@Override
public UriBuilder replaceMatrixParam(String name, Object... values) {
checkSsp();
if (name == null) {
throw new IllegalArgumentException("Name parameter is null");
}
if (matrixParams == null) {
int i = path.lastIndexOf("/");
if (i != -1) {
i = 0;
}
matrixParams = UriComponent.decodeMatrix((i != -1) ? path.substring(i) : "", false);
i = path.indexOf(";", i);
if (i != -1) {
path.setLength(i);
}
}
name = encode(name, UriComponent.Type.MATRIX_PARAM);
matrixParams.remove(name);
if (values != null) {
for (Object value : values) {
if (value == null) {
throw new IllegalArgumentException("One or more of matrix value parameters are null");
}
matrixParams.add(name, encode(value.toString(), UriComponent.Type.MATRIX_PARAM));
}
}
return this;
}
@Override
public UriBuilder replaceQuery(String query) {
checkSsp();
this.query.setLength(0);
if (query != null) {
this.query.append(encode(query, UriComponent.Type.QUERY));
}
return this;
}
@Override
public UriBuilder queryParam(String name, Object... values) {
checkSsp();
if (name == null) {
throw new IllegalArgumentException("Name parameter is null");
}
if (values == null) {
throw new IllegalArgumentException("Value parameter is null");
}
if (values.length == 0) {
return this;
}
name = encode(name, UriComponent.Type.QUERY_PARAM);
if (queryParams == null) {
for (Object value : values) {
if (query.length() > 0) {
query.append('&');
}
query.append(name);
if (value == null) {
throw new IllegalArgumentException("One or more of query value parameters are null");
}
final String stringValue = value.toString();
if (stringValue.length() > 0) {
query.append('=').append(encode(stringValue, UriComponent.Type.QUERY_PARAM));
}
}
} else {
for (Object value : values) {
if (value == null) {
throw new IllegalArgumentException("One or more of query value parameters are null");
}
queryParams.add(name, encode(value.toString(), UriComponent.Type.QUERY_PARAM));
}
}
return this;
}
@Override
public UriBuilder replaceQueryParam(String name, Object... values) {
checkSsp();
if (queryParams == null) {
queryParams = UriComponent.decodeQuery(query.toString(), false);
query.setLength(0);
}
name = encode(name, UriComponent.Type.QUERY_PARAM);
queryParams.remove(name);
if (values == null) {
return this;
}
for (Object value : values) {
if (value == null) {
throw new IllegalArgumentException("One or more of query value parameters are null");
}
queryParams.add(name, encode(value.toString(), UriComponent.Type.QUERY_PARAM));
}
return this;
}
@Override
public UriBuilder fragment(String fragment) {
this.fragment = (fragment != null)
? encode(fragment, UriComponent.Type.FRAGMENT)
: null;
return this;
}
private void checkSsp() {
if (ssp != null) {
throw new IllegalArgumentException("Schema specific part is opaque");
}
}
private void appendPath(Path t) {
if (t == null) {
throw new IllegalArgumentException("Path is null");
}
appendPath(t.value());
}
private void appendPath(String path) {
appendPath(path, false);
}
private void appendPath(String segments, boolean isSegment) {
if (segments == null) {
throw new IllegalArgumentException("Path segment is null");
}
if (segments.length() == 0) {
return;
}
// Encode matrix parameters on current path segment
encodeMatrix();
segments = encode(segments,
(isSegment) ? UriComponent.Type.PATH_SEGMENT : UriComponent.Type.PATH);
final boolean pathEndsInSlash = path.length() > 0 && path.charAt(path.length() - 1) == '/';
final boolean segmentStartsWithSlash = segments.charAt(0) == '/';
if (path.length() > 0 && !pathEndsInSlash && !segmentStartsWithSlash) {
path.append('/');
} else if (pathEndsInSlash && segmentStartsWithSlash) {
segments = segments.substring(1);
if (segments.length() == 0) {
return;
}
}
path.append(segments);
}
private void encodeMatrix() {
if (matrixParams == null || matrixParams.isEmpty()) {
return;
}
for (Map.Entry> e : matrixParams.entrySet()) {
String name = e.getKey();
for (String value : e.getValue()) {
path.append(';').append(name);
if (value.length() > 0) {
path.append('=').append(value);
}
}
}
matrixParams = null;
}
private void encodeQuery() {
if (queryParams == null || queryParams.isEmpty()) {
return;
}
for (Map.Entry> e : queryParams.entrySet()) {
String name = e.getKey();
for (String value : e.getValue()) {
if (query.length() > 0) {
query.append('&');
}
query.append(name);
if (value.length() > 0) {
query.append('=').append(value);
}
}
}
queryParams = null;
}
private String encode(String s, UriComponent.Type type) {
return UriComponent.contextualEncode(s, type, true);
}
@Override
public URI buildFromMap(Map values) {
return _buildFromMap(true, values);
}
@Override
public URI buildFromEncodedMap(Map values) throws IllegalArgumentException, UriBuilderException {
return _buildFromMap(false, values);
}
private URI _buildFromMap(boolean encode, Map values) {
if (ssp != null) {
throw new IllegalArgumentException("Schema specific part is opaque");
}
encodeMatrix();
encodeQuery();
String uri = UriTemplate.createURI(
scheme, authority,
userInfo, host, (port != -1) ? String.valueOf(port) : null,
path.toString(), query.toString(), fragment, values, encode);
return createURI(uri);
}
@Override
public URI build(Object... values) {
return _build(true, values);
}
@Override
public URI buildFromEncoded(Object... values) {
return _build(false, values);
}
private URI _build(boolean encode, Object... values) {
if (values == null || values.length == 0) {
return createURI(create());
}
if (ssp != null) {
throw new IllegalArgumentException("Schema specific part is opaque");
}
encodeMatrix();
encodeQuery();
String uri = UriTemplate.createURI(
scheme, authority,
userInfo, host, (port != -1) ? String.valueOf(port) : null,
path.toString(), query.toString(), fragment, values, encode);
return createURI(uri);
}
private String create() {
encodeMatrix();
encodeQuery();
StringBuilder sb = new StringBuilder();
if (scheme != null) {
sb.append(scheme).append(':');
}
if (ssp != null) {
sb.append(ssp);
} else {
if (userInfo != null || host != null || port != -1) {
sb.append("//");
if (userInfo != null && userInfo.length() > 0) {
sb.append(userInfo).append('@');
}
if (host != null) {
// TODO check IPv6 address
sb.append(host);
}
if (port != -1) {
sb.append(':').append(port);
}
} else if (authority != null) {
sb.append("//").append(authority);
}
if (path.length() > 0) {
if (sb.length() > 0 && path.charAt(0) != '/') {
sb.append("/");
}
sb.append(path);
}
if (query.length() > 0) {
sb.append('?').append(query);
}
}
if (fragment != null && fragment.length() > 0) {
sb.append('#').append(fragment);
}
return UriComponent.encodeTemplateNames(sb.toString());
}
private URI createURI(String uri) {
try {
return new URI(uri);
} catch (URISyntaxException ex) {
throw new UriBuilderException(ex);
}
}
private String replaceNull(String s) {
return (s != null) ? s : "";
}
}
