/** 渲染URI query string。 */
@Override
protected final void renderQuery(StringBuilder buf) {
if (!getQuery().isEmpty()) {
buf.append("?");
for (Iterator<Map.Entry<String, Object>> i = getQuery().entrySet().iterator();
i.hasNext(); ) {
Map.Entry<String, Object> entry = i.next();
String id = escapeURL(entry.getKey());
Object value = entry.getValue();
if (value instanceof String[]) {
int length = ((String[]) value).length;
for (int j = 0; j < length; j++) {
buf.append(id).append("=").append(escapeURL(((String[]) value)[j]));
if (j + 1 < length) {
buf.append("&");
}
}
} else {
buf.append(id).append("=").append(escapeURL(String.valueOf(value)));
}
if (i.hasNext()) {
buf.append("&");
}
}
}
}
/** 取得不包含query和reference的serverURI。 */
public String getServerURI() {
processInterceptors();
StringBuilder buf = new StringBuilder();
render(buf, true);
return buf.toString();
}
/** 将resource转换成字符串表示。 */
@Override
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append(getClass().getSimpleName()).append("[InputStream: ");
buf.append(stream);
buf.append("]");
return buf.toString();
}
/** 将path转换成相对于base的相对路径。 */
private String getRelativePath(String base, String path) {
// 去除base中最后一段路径，例如：
// /sub/dir/index.html -> /sub/dir
// /sub/dir/ -> /sub/dir
int index = base.lastIndexOf("/");
if (index >= 0) {
base = base.substring(0, index);
}
// 特殊情况：base为空，直接返回path，但除去开头的/
if (isEmpty(base)) {
if (path.startsWith("/")) {
return path.replaceFirst("^/+", EMPTY_STRING);
} else {
return path;
}
}
Matcher baseMatcher = pathPattern.matcher(base);
Matcher pathMatcher = pathPattern.matcher(path);
boolean baseFound;
boolean pathFound;
// 去除base和path中相同的部分，例如：
// /this/is/base/dir -> /base/dir
// /this/is/my/path -> /my/path
do {
baseFound = baseMatcher.find();
pathFound = pathMatcher.find();
} while (baseFound && pathFound && isEquals(baseMatcher.group(2), pathMatcher.group(2)));
StringBuilder relativePath = new StringBuilder();
// 将base中剩余的部分，分别转换成../
for (; baseFound; baseFound = baseMatcher.find()) {
relativePath.append("../");
}
// 将path中剩余的部分，追加到末尾
while (pathFound) {
relativePath.append(pathMatcher.group(2));
pathFound = pathMatcher.find();
if (pathFound) {
relativePath.append("/");
}
}
return relativePath.toString();
}
private String getSubPathAsString(int segment, boolean multi) {
assertSegment(segment);
StringBuilder buf = new StringBuilder();
int endIndex = multi ? path.size() : pathSegmentIndexes[segment];
int beginIndex = segment > 0 ? pathSegmentIndexes[segment - 1] : 0;
for (int i = beginIndex; i < endIndex; i++) {
buf.append("/").append(path.get(i));
}
return buf.toString();
}
/** 渲染URI服务器信息。 */
@Override
protected final void renderServer(StringBuilder buf) {
// scheme://
String serverScheme = getEffectiveServerScheme(getServerScheme());
buf.append(serverScheme);
buf.append("://");
// user:password@
String loginUser = getLoginUser();
String loginPassword = getLoginPassword();
if (!isEmpty(loginUser)) {
buf.append(loginUser);
if (!isEmpty(loginPassword)) {
buf.append(":").append(loginPassword);
}
buf.append("@");
}
// hostname:port
String serverName = getServerName();
if (!isEmpty(serverName)) {
buf.append(serverName);
if (!isDefaultPort(serverScheme)) {
buf.append(":");
buf.append(getServerPort());
}
}
}
/** 渲染URI path。 */
@Override
protected final void renderPath(StringBuilder buf) {
for (String path : URIBroker.this.path) {
buf.append("/").append(escapeURL(path));
}
}
private void render(StringBuilder buf, boolean renderServerURIOnly) {
URIType type = renderServerURIOnly || getURIType() == null ? URIType.full : getURIType();
BaseURI baseURI = null;
boolean renderServer = true;
switch (type) {
case auto:
case absolute:
case relative:
baseURI = createBaseURI();
if (baseURI != null) {
// 当且仅当baseURI中的server信息和broker中的一致，才不渲染server
String scheme = getEffectiveServerScheme(getServerScheme());
int port = getEffectiveServerPort(scheme, getServerPort());
if (isEquals(scheme, baseURI.serverScheme)
&& isEquals(getServerName(), baseURI.serverName)
&& port == baseURI.serverPort) {
renderServer = false;
}
}
break;
case full:
}
// server info
if (renderServer) {
if (renderer.isServerRendered()) {
buf.append(renderer.serverBuffer);
} else {
renderServer(buf);
}
}
// path info
String path = EMPTY_STRING;
if (!URIBroker.this.path.isEmpty()) {
StringBuilder pathBuf = new StringBuilder();
if (renderer.isPathRendered()) {
pathBuf.append(renderer.pathBuffer);
} else {
renderPath(pathBuf);
}
path = pathBuf.toString();
}
path = trimToEmpty(processPathInterceptors(path));
// 将path转换成相对路径（前提：server未渲染）
if (!renderServer) {
switch (type) {
case relative:
path = getRelativePath(baseURI.path, path);
break;
case auto:
String relativePath = getRelativePath(baseURI.path, path);
if (!relativePath.startsWith("../")) {
path = relativePath;
}
break;
case full:
case absolute:
}
}
if (renderServer && !path.startsWith("/")) {
buf.append("/");
}
buf.append(path);
if (!renderServerURIOnly) {
// query info
if (renderer.isQueryRendered()) {
buf.append(renderer.queryBuffer);
} else {
renderQuery(buf);
}
// #reference
String reference = getReference();
if (!isEmpty(reference)) {
buf.append("#");
buf.append(reference);
}
}
}