dubbo URLParam 源码
dubbo URLParam 代码
文件路径：/dubbo-common/src/main/java/org/apache/dubbo/common/url/component/URLParam.java
/*
* 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.dubbo.common.url.component;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.URLStrParser;
import org.apache.dubbo.common.url.component.param.DynamicParamTable;
import org.apache.dubbo.common.utils.CollectionUtils;
import org.apache.dubbo.common.utils.StringUtils;
import java.util.Arrays;
import java.util.BitSet;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.StringJoiner;
import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_KEY_PREFIX;
import static org.apache.dubbo.common.constants.CommonConstants.METHODS_KEY;
import static org.apache.dubbo.common.constants.CommonConstants.TIMESTAMP_KEY;
/**
* A class which store parameters for {@link URL}
* <br/>
* Using {@link DynamicParamTable} to compress common keys (i.e. side, version)
* <br/>
* {@link DynamicParamTable} allow to use only two integer value named `key` and
* `value-offset` to find a unique string to string key-pair. Also, `value-offset`
* is not required if the real value is the default value.
* <br/>
* URLParam should operate as Copy-On-Write, each modify actions will return a new Object
* <br/>
* <p>
* NOTE: URLParam is not support serialization! {@link DynamicParamTable} is related with
* current running environment. If you want to make URL as a parameter, please call
* {@link URL#toSerializableURL()} to create {@link URLPlainParam} instead.
*
* @since 3.0
*/
public class URLParam {
/**
* Maximum size of key-pairs requested using array moving to add into URLParam.
* If user request like addParameter for only one key-pair, adding value into a array
* on moving is more efficient. However when add more than ADD_PARAMETER_ON_MOVE_THRESHOLD
* size of key-pairs, recover compressed array back to map can reduce operation count
* when putting objects.
*/
private static final int ADD_PARAMETER_ON_MOVE_THRESHOLD = 1;
/**
* the original parameters string, empty if parameters have been modified or init by {@link Map}
*/
private final String rawParam;
/**
* using bit to save if index exist even if value is default value
*/
private final BitSet KEY;
/**
* an array which contains value-offset
*/
private final int[] VALUE;
/**
* store extra parameters which key not match in {@link DynamicParamTable}
*/
private final Map<String, String> EXTRA_PARAMS;
/**
* store method related parameters
* <p>
* K - key
* V -
* K - method
* V - value
* <p>
* e.g. method1.mock=true => ( mock, (method1, true) )
*/
private final Map<String, Map<String, String>> METHOD_PARAMETERS;
private transient long timestamp;
/**
* Whether to enable DynamicParamTable compression
*/
protected boolean enableCompressed;
private final static URLParam EMPTY_PARAM = new URLParam(new BitSet(0), Collections.emptyMap(), Collections.emptyMap(), Collections.emptyMap(), "");
protected URLParam() {
this.rawParam = null;
this.KEY = null;
this.VALUE = null;
this.EXTRA_PARAMS = null;
this.METHOD_PARAMETERS = null;
this.enableCompressed = true;
}
protected URLParam(BitSet key, Map<Integer, Integer> value, Map<String, String> extraParams, Map<String, Map<String, String>> methodParameters, String rawParam) {
this.KEY = key;
this.VALUE = new int[value.size()];
for (int i = key.nextSetBit(0), offset = 0; i >= 0; i = key.nextSetBit(i + 1)) {
if (value.containsKey(i)) {
VALUE[offset++] = value.get(i);
} else {
throw new IllegalArgumentException();
}
}
this.EXTRA_PARAMS = Collections.unmodifiableMap((extraParams == null ? new HashMap<>() : new HashMap<>(extraParams)));
this.METHOD_PARAMETERS = Collections.unmodifiableMap((methodParameters == null) ? Collections.emptyMap() : new LinkedHashMap<>(methodParameters));
this.rawParam = rawParam;
this.timestamp = System.currentTimeMillis();
this.enableCompressed = true;
}
protected URLParam(BitSet key, int[] value, Map<String, String> extraParams, Map<String, Map<String, String>> methodParameters, String rawParam) {
this.KEY = key;
this.VALUE = value;
this.EXTRA_PARAMS = Collections.unmodifiableMap((extraParams == null ? new HashMap<>() : new HashMap<>(extraParams)));
this.METHOD_PARAMETERS = Collections.unmodifiableMap((methodParameters == null) ? Collections.emptyMap() : new LinkedHashMap<>(methodParameters));
this.rawParam = rawParam;
this.timestamp = System.currentTimeMillis();
this.enableCompressed = true;
}
/**
* Weather there contains some parameter match method
*
* @param method method name
* @return contains or not
*/
public boolean hasMethodParameter(String method) {
if (method == null) {
return false;
}
String methodsString = getParameter(METHODS_KEY);
if (StringUtils.isNotEmpty(methodsString)) {
if (!methodsString.contains(method)) {
return false;
}
}
for (Map.Entry<String, Map<String, String>> methods : METHOD_PARAMETERS.entrySet()) {
if (methods.getValue().containsKey(method)) {
return true;
}
}
return false;
}
/**
* Get method related parameter. If not contains, use getParameter(key) instead.
* Specially, in some situation like `method1.1.callback=true`, key is `1.callback`.
*
* @param method method name
* @param key key
* @return value
*/
public String getMethodParameter(String method, String key) {
String strictResult = getMethodParameterStrict(method, key);
return StringUtils.isNotEmpty(strictResult) ? strictResult : getParameter(key);
}
/**
* Get method related parameter. If not contains, return null.
* Specially, in some situation like `method1.1.callback=true`, key is `1.callback`.
*
* @param method method name
* @param key key
* @return value
*/
public String getMethodParameterStrict(String method, String key) {
String methodsString = getParameter(METHODS_KEY);
if (StringUtils.isNotEmpty(methodsString)) {
if (!methodsString.contains(method)) {
return null;
}
}
Map<String, String> methodMap = METHOD_PARAMETERS.get(key);
if (CollectionUtils.isNotEmptyMap(methodMap)) {
return methodMap.get(method);
} else {
return null;
}
}
public static Map<String, Map<String, String>> initMethodParameters(Map<String, String> parameters) {
Map<String, Map<String, String>> methodParameters = new HashMap<>();
if (parameters == null) {
return methodParameters;
}
String methodsString = parameters.get(METHODS_KEY);
if (StringUtils.isNotEmpty(methodsString)) {
String[] methods = methodsString.split(",");
for (Map.Entry<String, String> entry : parameters.entrySet()) {
String key = entry.getKey();
for (String method : methods) {
String methodPrefix = method + '.';
if (key.startsWith(methodPrefix)) {
String realKey = key.substring(methodPrefix.length());
URL.putMethodParameter(method, realKey, entry.getValue(), methodParameters);
}
}
}
} else {
for (Map.Entry<String, String> entry : parameters.entrySet()) {
String key = entry.getKey();
int methodSeparator = key.indexOf('.');
if (methodSeparator > 0) {
String method = key.substring(0, methodSeparator);
String realKey = key.substring(methodSeparator + 1);
URL.putMethodParameter(method, realKey, entry.getValue(), methodParameters);
}
}
}
return methodParameters;
}
/**
* An embedded Map adapt to URLParam
* <br/>
* copy-on-write mode, urlParam reference will be changed after modify actions.
* If wishes to get the result after modify, please use {@link URLParamMap#getUrlParam()}
*/
public static class URLParamMap implements Map<String, String> {
private URLParam urlParam;
public URLParamMap(URLParam urlParam) {
this.urlParam = urlParam;
}
public static class Node implements Map.Entry<String, String> {
private final String key;
private String value;
public Node(String key, String value) {
this.key = key;
this.value = value;
}
@Override
public String getKey() {
return key;
}
@Override
public String getValue() {
return value;
}
@Override
public String setValue(String value) {
throw new UnsupportedOperationException();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Node node = (Node) o;
return Objects.equals(key, node.key) && Objects.equals(value, node.value);
}
@Override
public int hashCode() {
return Objects.hash(key, value);
}
}
@Override
public int size() {
return urlParam.KEY.cardinality() + urlParam.EXTRA_PARAMS.size();
}
@Override
public boolean isEmpty() {
return size() == 0;
}
@Override
public boolean containsKey(Object key) {
if (key instanceof String) {
return urlParam.hasParameter((String) key);
} else {
return false;
}
}
@Override
public boolean containsValue(Object value) {
return values().contains(value);
}
@Override
public String get(Object key) {
if (key instanceof String) {
return urlParam.getParameter((String) key);
} else {
return null;
}
}
@Override
public String put(String key, String value) {
String previous = urlParam.getParameter(key);
urlParam = urlParam.addParameter(key, value);
return previous;
}
@Override
public String remove(Object key) {
if (key instanceof String) {
String previous = urlParam.getParameter((String) key);
urlParam = urlParam.removeParameters((String) key);
return previous;
} else {
return null;
}
}
@Override
public void putAll(Map<? extends String, ? extends String> m) {
urlParam = urlParam.addParameters((Map<String, String>) m);
}
@Override
public void clear() {
urlParam = urlParam.clearParameters();
}
@Override
public Set<String> keySet() {
Set<String> set = new LinkedHashSet<>((int) ((urlParam.VALUE.length + urlParam.EXTRA_PARAMS.size()) / 0.75) + 1);
for (int i = urlParam.KEY.nextSetBit(0); i >= 0; i = urlParam.KEY.nextSetBit(i + 1)) {
set.add(DynamicParamTable.getKey(i));
}
for (Entry<String, String> entry : urlParam.EXTRA_PARAMS.entrySet()) {
set.add(entry.getKey());
}
return Collections.unmodifiableSet(set);
}
@Override
public Collection<String> values() {
Set<String> set = new LinkedHashSet<>((int) ((urlParam.VALUE.length + urlParam.EXTRA_PARAMS.size()) / 0.75) + 1);
for (int i = urlParam.KEY.nextSetBit(0); i >= 0; i = urlParam.KEY.nextSetBit(i + 1)) {
String value;
int offset = urlParam.keyIndexToOffset(i);
value = DynamicParamTable.getValue(i, offset);
set.add(value);
}
for (Entry<String, String> entry : urlParam.EXTRA_PARAMS.entrySet()) {
set.add(entry.getValue());
}
return Collections.unmodifiableSet(set);
}
@Override
public Set<Entry<String, String>> entrySet() {
Set<Entry<String, String>> set = new LinkedHashSet<>((int) ((urlParam.KEY.cardinality() + urlParam.EXTRA_PARAMS.size()) / 0.75) + 1);
for (int i = urlParam.KEY.nextSetBit(0); i >= 0; i = urlParam.KEY.nextSetBit(i + 1)) {
String value;
int offset = urlParam.keyIndexToOffset(i);
value = DynamicParamTable.getValue(i, offset);
set.add(new Node(DynamicParamTable.getKey(i), value));
}
for (Entry<String, String> entry : urlParam.EXTRA_PARAMS.entrySet()) {
set.add(new Node(entry.getKey(), entry.getValue()));
}
return Collections.unmodifiableSet(set);
}
public URLParam getUrlParam() {
return urlParam;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
URLParamMap that = (URLParamMap) o;
return Objects.equals(urlParam, that.urlParam);
}
@Override
public int hashCode() {
return Objects.hash(urlParam);
}
}
/**
* Get a Map like URLParam
*
* @return a {@link URLParamMap} adapt to URLParam
*/
public Map<String, String> getParameters() {
return new URLParamMap(this);
}
/**
* Get any method related parameter which match key
*
* @param key key
* @return result ( if any, random choose one )
*/
public String getAnyMethodParameter(String key) {
Map<String, String> methodMap = METHOD_PARAMETERS.get(key);
if (CollectionUtils.isNotEmptyMap(methodMap)) {
String methods = getParameter(METHODS_KEY);
if (StringUtils.isNotEmpty(methods)) {
for (String method : methods.split(",")) {
String value = methodMap.get(method);
if (StringUtils.isNotEmpty(value)) {
return value;
}
}
} else {
return methodMap.values().iterator().next();
}
}
return null;
}
/**
* Add parameters to a new URLParam.
*
* @param key key
* @param value value
* @return A new URLParam
*/
public URLParam addParameter(String key, String value) {
if (StringUtils.isEmpty(key) || StringUtils.isEmpty(value)) {
return this;
}
return addParameters(Collections.singletonMap(key, value));
}
/**
* Add absent parameters to a new URLParam.
*
* @param key key
* @param value value
* @return A new URLParam
*/
public URLParam addParameterIfAbsent(String key, String value) {
if (StringUtils.isEmpty(key) || StringUtils.isEmpty(value)) {
return this;
}
if (hasParameter(key)) {
return this;
}
return addParametersIfAbsent(Collections.singletonMap(key, value));
}
/**
* Add parameters to a new URLParam.
* If key-pair is present, this will cover it.
*
* @param parameters parameters in key-value pairs
* @return A new URLParam
*/
public URLParam addParameters(Map<String, String> parameters) {
if (CollectionUtils.isEmptyMap(parameters)) {
return this;
}
boolean hasAndEqual = true;
Map<String, String> urlParamMap = getParameters();
for (Map.Entry<String, String> entry : parameters.entrySet()) {
String value = urlParamMap.get(entry.getKey());
if (value == null) {
if (entry.getValue() != null) {
hasAndEqual = false;
break;
}
} else {
if (!value.equals(entry.getValue())) {
hasAndEqual = false;
break;
}
}
}
// return immediately if there's no change
if (hasAndEqual) {
return this;
}
return doAddParameters(parameters, false);
}
/**
* Add absent parameters to a new URLParam.
*
* @param parameters parameters in key-value pairs
* @return A new URL
*/
public URLParam addParametersIfAbsent(Map<String, String> parameters) {
if (CollectionUtils.isEmptyMap(parameters)) {
return this;
}
return doAddParameters(parameters, true);
}
private URLParam doAddParameters(Map<String, String> parameters, boolean skipIfPresent) {
// lazy init, null if no modify
BitSet newKey = null;
int[] newValueArray = null;
Map<Integer, Integer> newValueMap = null;
Map<String, String> newExtraParams = null;
Map<String, Map<String, String>> newMethodParams = null;
for (Map.Entry<String, String> entry : parameters.entrySet()) {
if (skipIfPresent && hasParameter(entry.getKey())) {
continue;
}
if (entry.getKey() == null || entry.getValue() == null) {
continue;
}
int keyIndex = DynamicParamTable.getKeyIndex(enableCompressed, entry.getKey());
if (keyIndex < 0) {
// entry key is not present in DynamicParamTable, add it to EXTRA_PARAMS
if (newExtraParams == null) {
newExtraParams = new HashMap<>(EXTRA_PARAMS);
}
newExtraParams.put(entry.getKey(), entry.getValue());
String[] methodSplit = entry.getKey().split("\\.");
if (methodSplit.length == 2) {
if (newMethodParams == null) {
newMethodParams = new HashMap<>(METHOD_PARAMETERS);
}
Map<String, String> methodMap = newMethodParams.computeIfAbsent(methodSplit[1], (k) -> new HashMap<>());
methodMap.put(methodSplit[0], entry.getValue());
}
} else {
if (KEY.get(keyIndex)) {
// contains key, replace value
if (parameters.size() > ADD_PARAMETER_ON_MOVE_THRESHOLD) {
// recover VALUE back to Map, use map to replace key pair
if (newValueMap == null) {
newValueMap = recoverValue();
}
newValueMap.put(keyIndex, DynamicParamTable.getValueIndex(entry.getKey(), entry.getValue()));
} else {
newValueArray = replaceOffset(VALUE, keyIndexToIndex(KEY, keyIndex), DynamicParamTable.getValueIndex(entry.getKey(), entry.getValue()));
}
} else {
// key is absent, add it
if (newKey == null) {
newKey = (BitSet) KEY.clone();
}
newKey.set(keyIndex);
if (parameters.size() > ADD_PARAMETER_ON_MOVE_THRESHOLD) {
// recover VALUE back to Map
if (newValueMap == null) {
newValueMap = recoverValue();
}
newValueMap.put(keyIndex, DynamicParamTable.getValueIndex(entry.getKey(), entry.getValue()));
} else {
// add parameter by moving array, only support for adding once
newValueArray = addByMove(VALUE, keyIndexToIndex(newKey, keyIndex), DynamicParamTable.getValueIndex(entry.getKey(), entry.getValue()));
}
}
}
}
if (newKey == null) {
newKey = KEY;
}
if (newValueArray == null && newValueMap == null) {
newValueArray = VALUE;
}
if (newExtraParams == null) {
newExtraParams = EXTRA_PARAMS;
}
if (newMethodParams == null) {
newMethodParams = METHOD_PARAMETERS;
}
if (newValueMap == null) {
return new URLParam(newKey, newValueArray, newExtraParams, newMethodParams, null);
} else {
return new URLParam(newKey, newValueMap, newExtraParams, newMethodParams, null);
}
}
private Map<Integer, Integer> recoverValue() {
Map<Integer, Integer> map = new HashMap<>((int) (KEY.size() / 0.75) + 1);
for (int i = KEY.nextSetBit(0), offset = 0; i >= 0; i = KEY.nextSetBit(i + 1)) {
map.put(i, VALUE[offset++]);
}
return map;
}
private int[] addByMove(int[] array, int index, Integer value) {
if (index < 0 || index > array.length) {
throw new IllegalArgumentException();
}
// copy-on-write
int[] result = new int[array.length + 1];
System.arraycopy(array, 0, result, 0, index);
result[index] = value;
System.arraycopy(array, index, result, index + 1, array.length - index);
return result;
}
private int[] replaceOffset(int[] array, int index, Integer value) {
if (index < 0 || index > array.length) {
throw new IllegalArgumentException();
}
// copy-on-write
int[] result = new int[array.length];
System.arraycopy(array, 0, result, 0, array.length);
result[index] = value;
return result;
}
/**
* remove specified parameters in URLParam
*
* @param keys keys to being removed
* @return A new URLParam
*/
public URLParam removeParameters(String... keys) {
if (keys == null || keys.length == 0) {
return this;
}
// lazy init, null if no modify
BitSet newKey = null;
int[] newValueArray = null;
Map<String, String> newExtraParams = null;
Map<String, Map<String, String>> newMethodParams = null;
for (String key : keys) {
int keyIndex = DynamicParamTable.getKeyIndex(enableCompressed, key);
if (keyIndex >= 0 && KEY.get(keyIndex)) {
if (newKey == null) {
newKey = (BitSet) KEY.clone();
}
newKey.clear(keyIndex);
// which offset is in VALUE array, set value as -1, compress in the end
if (newValueArray == null) {
newValueArray = new int[VALUE.length];
System.arraycopy(VALUE, 0, newValueArray, 0, VALUE.length);
}
// KEY is immutable
newValueArray[keyIndexToIndex(KEY, keyIndex)] = -1;
}
if (EXTRA_PARAMS.containsKey(key)) {
if (newExtraParams == null) {
newExtraParams = new HashMap<>(EXTRA_PARAMS);
}
newExtraParams.remove(key);
String[] methodSplit = key.split("\\.");
if (methodSplit.length == 2) {
if (newMethodParams == null) {
newMethodParams = new HashMap<>(METHOD_PARAMETERS);
}
Map<String, String> methodMap = newMethodParams.get(methodSplit[1]);
if (CollectionUtils.isNotEmptyMap(methodMap)) {
methodMap.remove(methodSplit[0]);
}
}
}
// ignore if key is absent
}
if (newKey == null) {
newKey = KEY;
}
if (newValueArray == null) {
newValueArray = VALUE;
} else {
// remove -1 value
newValueArray = compressArray(newValueArray);
}
if (newExtraParams == null) {
newExtraParams = EXTRA_PARAMS;
}
if (newMethodParams == null) {
newMethodParams = METHOD_PARAMETERS;
}
if (newKey.cardinality() + newExtraParams.size() == 0) {
// empty, directly return cache
return EMPTY_PARAM;
} else {
return new URLParam(newKey, newValueArray, newExtraParams, newMethodParams, null);
}
}
private int[] compressArray(int[] array) {
int total = 0;
for (int i : array) {
if (i > -1) {
total++;
}
}
if (total == 0) {
return new int[0];
}
int[] result = new int[total];
for (int i = 0, offset = 0; i < array.length; i++) {
// skip if value if less than 0
if (array[i] > -1) {
result[offset++] = array[i];
}
}
return result;
}
/**
* remove all of the parameters in URLParam
*
* @return An empty URLParam
*/
public URLParam clearParameters() {
return EMPTY_PARAM;
}
/**
* check if specified key is present in URLParam
*
* @param key specified key
* @return present or not
*/
public boolean hasParameter(String key) {
int keyIndex = DynamicParamTable.getKeyIndex(enableCompressed, key);
if (keyIndex < 0) {
return EXTRA_PARAMS.containsKey(key);
}
return KEY.get(keyIndex);
}
/**
* get value of specified key in URLParam
*
* @param key specified key
* @return value, null if key is absent
*/
public String getParameter(String key) {
int keyIndex = DynamicParamTable.getKeyIndex(enableCompressed, key);
if (keyIndex < 0) {
return EXTRA_PARAMS.get(key);
}
if (KEY.get(keyIndex)) {
String value;
int offset = keyIndexToOffset(keyIndex);
value = DynamicParamTable.getValue(keyIndex, offset);
return value;
// if (StringUtils.isEmpty(value)) {
// // Forward compatible, make sure key dynamic increment can work.
// // In that case, some values which are proceed before increment will set in EXTRA_PARAMS.
// return EXTRA_PARAMS.get(key);
// } else {
// return value;
// }
}
return null;
}
private int keyIndexToIndex(BitSet key, int keyIndex) {
return key.get(0, keyIndex).cardinality();
}
private int keyIndexToOffset(int keyIndex) {
int arrayOffset = keyIndexToIndex(KEY, keyIndex);
return VALUE[arrayOffset];
}
/**
* get raw string like parameters
*
* @return raw string like parameters
*/
public String getRawParam() {
if (StringUtils.isNotEmpty(rawParam)) {
return rawParam;
} else {
// empty if parameters have been modified or init by Map
return toString();
}
}
protected Map<String, Map<String, String>> getMethodParameters() {
return METHOD_PARAMETERS;
}
public long getTimestamp() {
return timestamp;
}
public void setTimestamp(long timestamp) {
this.timestamp = timestamp;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
URLParam urlParam = (URLParam) o;
if (Objects.equals(KEY, urlParam.KEY)
&& Arrays.equals(VALUE, urlParam.VALUE)) {
if (CollectionUtils.isNotEmptyMap(EXTRA_PARAMS)) {
if (CollectionUtils.isEmptyMap(urlParam.EXTRA_PARAMS) || EXTRA_PARAMS.size() != urlParam.EXTRA_PARAMS.size()) {
return false;
}
for (Map.Entry<String, String> entry : EXTRA_PARAMS.entrySet()) {
if (TIMESTAMP_KEY.equals(entry.getKey())) {
continue;
}
if (!entry.getValue().equals(urlParam.EXTRA_PARAMS.get(entry.getKey()))) {
return false;
}
}
return true;
}
return CollectionUtils.isEmptyMap(urlParam.EXTRA_PARAMS);
}
return false;
}
private int hashCodeCache = -1;
@Override
public int hashCode() {
if (hashCodeCache == -1) {
for (Map.Entry<String, String> entry : EXTRA_PARAMS.entrySet()) {
if (!TIMESTAMP_KEY.equals(entry.getKey())) {
hashCodeCache = hashCodeCache * 31 + Objects.hashCode(entry);
}
}
for (Integer value : VALUE) {
hashCodeCache = hashCodeCache * 31 + value;
}
hashCodeCache = hashCodeCache * 31 + ((KEY == null) ? 0 : KEY.hashCode());
}
return hashCodeCache;
}
@Override
public String toString() {
if (StringUtils.isNotEmpty(rawParam)) {
return rawParam;
}
if ((KEY.cardinality() + EXTRA_PARAMS.size()) == 0) {
return "";
}
StringJoiner stringJoiner = new StringJoiner("&");
for (int i = KEY.nextSetBit(0); i >= 0; i = KEY.nextSetBit(i + 1)) {
String key = DynamicParamTable.getKey(i);
String value = DynamicParamTable.getValue(i, keyIndexToOffset(i));
value = value == null ? "" : value.trim();
stringJoiner.add(String.format("%s=%s", key, value));
}
for (Map.Entry<String, String> entry : EXTRA_PARAMS.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
value = value == null ? "" : value.trim();
stringJoiner.add(String.format("%s=%s", key, value));
}
return stringJoiner.toString();
}
/**
* Parse URLParam
* Init URLParam by constructor is not allowed
* rawParam field in result will be null while {@link URLParam#getRawParam()} will automatically create it
*
* @param params params map added into URLParam
* @return a new URLParam
*/
public static URLParam parse(Map<String, String> params) {
return parse(params, null);
}
/**
* Parse URLParam
* Init URLParam by constructor is not allowed
*
* @param rawParam original rawParam string
* @param encoded if parameters are URL encoded
* @param extraParameters extra parameters to add into URLParam
* @return a new URLParam
*/
public static URLParam parse(String rawParam, boolean encoded, Map<String, String> extraParameters) {
Map<String, String> parameters = URLStrParser.parseParams(rawParam, encoded);
if (CollectionUtils.isNotEmptyMap(extraParameters)) {
parameters.putAll(extraParameters);
}
return parse(parameters, rawParam);
}
/**
* Parse URLParam
* Init URLParam by constructor is not allowed
*
* @param rawParam original rawParam string
* @return a new URLParam
*/
public static URLParam parse(String rawParam) {
String[] parts = rawParam.split("&");
int capacity = (int) (parts.length / .75f) + 1;
BitSet keyBit = new BitSet(capacity);
Map<Integer, Integer> valueMap = new HashMap<>(capacity);
Map<String, String> extraParam = new HashMap<>(capacity);
Map<String, Map<String, String>> methodParameters = new HashMap<>(capacity);
for (String part : parts) {
part = part.trim();
if (part.length() > 0) {
int j = part.indexOf('=');
if (j >= 0) {
String key = part.substring(0, j);
String value = part.substring(j + 1);
addParameter(keyBit, valueMap, extraParam, methodParameters, key, value, false);
// compatible with lower versions registering "default." keys
if (key.startsWith(DEFAULT_KEY_PREFIX)) {
addParameter(keyBit, valueMap, extraParam, methodParameters, key.substring(DEFAULT_KEY_PREFIX.length()), value, true);
}
} else {
addParameter(keyBit, valueMap, extraParam, methodParameters, part, part, false);
}
}
}
return new URLParam(keyBit, valueMap, extraParam, methodParameters, rawParam);
}
/**
* Parse URLParam
* Init URLParam by constructor is not allowed
*
* @param params params map added into URLParam
* @param rawParam original rawParam string, directly add to rawParam field,
* will not affect real key-pairs store in URLParam.
* Please make sure it can correspond with params or will
* cause unexpected result when calling {@link URLParam#getRawParam()}
* and {@link URLParam#toString()} ()}. If you not sure, you can call
* {@link URLParam#parse(String)} to init.
* @return a new URLParam
*/
public static URLParam parse(Map<String, String> params, String rawParam) {
if (CollectionUtils.isNotEmptyMap(params)) {
int capacity = (int) (params.size() / .75f) + 1;
BitSet keyBit = new BitSet(capacity);
Map<Integer, Integer> valueMap = new HashMap<>(capacity);
Map<String, String> extraParam = new HashMap<>(capacity);
Map<String, Map<String, String>> methodParameters = new HashMap<>(capacity);
for (Map.Entry<String, String> entry : params.entrySet()) {
addParameter(keyBit, valueMap, extraParam, methodParameters, entry.getKey(), entry.getValue(), false);
}
return new URLParam(keyBit, valueMap, extraParam, methodParameters, rawParam);
} else {
return EMPTY_PARAM;
}
}
private static void addParameter(BitSet keyBit, Map<Integer, Integer> valueMap, Map<String, String> extraParam,
Map<String, Map<String, String>> methodParameters, String key, String value, boolean skipIfPresent) {
int keyIndex = DynamicParamTable.getKeyIndex(true, key);
if (skipIfPresent) {
if (keyIndex < 0) {
if (extraParam.containsKey(key)) {
return;
}
} else {
if (keyBit.get(keyIndex)) {
return;
}
}
}
if (keyIndex < 0) {
extraParam.put(key, value);
String[] methodSplit = key.split("\\.", 2);
if (methodSplit.length == 2) {
Map<String, String> methodMap = methodParameters.computeIfAbsent(methodSplit[1], (k) -> new HashMap<>());
methodMap.put(methodSplit[0], value);
}
} else {
valueMap.put(keyIndex, DynamicParamTable.getValueIndex(key, value));
keyBit.set(keyIndex);
}
}
}
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