/** 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();
}
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);
}
}
}