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package com.microsoft.azure.documentdb;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
import com.microsoft.azure.documentdb.internal.Constants;
import com.microsoft.azure.documentdb.internal.HttpConstants;
/**
* Template class used by feed methods (enumeration operations) in the Azure Cosmos DB database service.
*
* @param the resource type of the feed response.
*/
public final class FeedResponse {
private QueryIterable inner;
private Map usageHeaders;
private Map quotaHeaders;
// Used in ChangeFeed API
private boolean useEtagAsContinuation;
FeedResponse(QueryIterable result) {
this(result, false);
}
FeedResponse(QueryIterable result, boolean useEtagAsContinuation) {
this.inner = result;
this.usageHeaders = new HashMap();
this.quotaHeaders = new HashMap();
this.useEtagAsContinuation = useEtagAsContinuation;
}
private static String getValueOrNull(Map map, String key) {
if (map != null) {
return map.get(key);
}
return null;
}
/**
* Max Quota.
*
* @return the database quota.
*/
public long getDatabaseQuota() {
return this.getMaxQuotaHeader(Constants.Quota.DATABASE);
}
/**
* Current Usage.
*
* @return the current database usage.
*/
public long getDatabaseUsage() {
return this.getCurrentQuotaHeader(Constants.Quota.DATABASE);
}
/**
* Max Quota.
*
* @return the collection quota.
*/
public long getCollectionQuota() {
return this.getMaxQuotaHeader(Constants.Quota.COLLECTION);
}
/**
* Current Usage.
*
* @return the current collection usage.
*/
public long getCollectionUsage() {
return this.getCurrentQuotaHeader(Constants.Quota.COLLECTION);
}
/**
* Max Quota.
*
* @return the user quota.
*/
public long getUserQuota() {
return this.getMaxQuotaHeader(Constants.Quota.USER);
}
/**
* Current Usage.
*
* @return the current user usage.
*/
public long getUserUsage() {
return this.getCurrentQuotaHeader(Constants.Quota.USER);
}
/**
* Max Quota.
*
* @return the permission quota.
*/
public long getPermissionQuota() {
return this.getMaxQuotaHeader(Constants.Quota.PERMISSION);
}
/**
* Current Usage.
*
* @return the current permission usage.
*/
public long getPermissionUsage() {
return this.getCurrentQuotaHeader(Constants.Quota.PERMISSION);
}
/**
* Max Quota.
*
* @return the collection size quota.
*/
public long getCollectionSizeQuota() {
return this.getMaxQuotaHeader(Constants.Quota.COLLECTION_SIZE);
}
/**
* Current Usage.
*
* @return the current collection size usage.
*/
public long getCollectionSizeUsage() {
return this.getCurrentQuotaHeader(Constants.Quota.COLLECTION_SIZE);
}
/**
* Max Quota.
*
* @return the stored procedure quota.
*/
public long getStoredProceduresQuota() {
return this.getMaxQuotaHeader(Constants.Quota.STORED_PROCEDURE);
}
/**
* Current Usage.
*
* @return the current stored procedure usage.
*/
public long getStoredProceduresUsage() {
return this.getCurrentQuotaHeader(Constants.Quota.STORED_PROCEDURE);
}
/**
* Max Quota.
*
* @return the triggers quota.
*/
public long getTriggersQuota() {
return this.getMaxQuotaHeader(Constants.Quota.TRIGGER);
}
/**
* Current Usage.
*
* @return the current triggers usage.
*/
public long getTriggersUsage() {
return this.getCurrentQuotaHeader(Constants.Quota.TRIGGER);
}
/**
* Max Quota.
*
* @return the user defined functions quota.
*/
public long getUserDefinedFunctionsQuota() {
return this.getMaxQuotaHeader(Constants.Quota.USER_DEFINED_FUNCTION);
}
/**
* Current Usage.
*
* @return the current user defined functions usage.
*/
public long getUserDefinedFunctionsUsage() {
return this.getCurrentQuotaHeader(Constants.Quota.USER_DEFINED_FUNCTION);
}
/**
* Gets the maximum size limit for this entity (in megabytes (MB) for server resources and in count for master
* resources).
*
* @return the max resource quota.
*/
public String getMaxResourceQuota() {
return FeedResponse.getValueOrNull(this.inner.getResponseHeaders(),
HttpConstants.HttpHeaders.MAX_RESOURCE_QUOTA);
}
/**
* Gets the current size of this entity (in megabytes (MB) for server resources and in count for master resources).
*
* @return the current resource quota usage.
*/
public String getCurrentResourceQuotaUsage() {
return FeedResponse.getValueOrNull(this.inner.getResponseHeaders(),
HttpConstants.HttpHeaders.CURRENT_RESOURCE_QUOTA_USAGE);
}
/**
* Gets the number of index paths (terms) generated by the operation.
*
* @return the request charge.
*/
public double getRequestCharge() {
String value = FeedResponse.getValueOrNull(this.inner.getResponseHeaders(),
HttpConstants.HttpHeaders.REQUEST_CHARGE);
if (StringUtils.isEmpty(value)) {
return 0;
}
return Double.valueOf(value);
}
/**
* Gets the flag associated with the response from the Azure Cosmos DB
* database service whether this feed request is served from Request
* Units(RUs)/minute capacity or not.
*
* @return True if this request is served from RUs/minute capacity.
* Otherwise, false.
*/
public boolean getRUPerMinuteUsed() {
String value = this.getResponseHeaders().get(HttpConstants.HttpHeaders.IS_RU_PER_MINUTE_USED);
if (StringUtils.isEmpty(value) || "0".equals(value) || "false".equals(value.toLowerCase())) {
return false;
} else {
return true;
}
}
/**
* Gets the activity ID for the request.
*
* @return the activity id.
*/
public String getActivityId() {
return FeedResponse.getValueOrNull(this.inner.getResponseHeaders(), HttpConstants.HttpHeaders.ACTIVITY_ID);
}
/**
* Gets the continuation token to be used for continuing the enumeration.
*
* @return the response continuation.
*/
public String getResponseContinuation() {
String headerName = useEtagAsContinuation
? HttpConstants.HttpHeaders.E_TAG
: HttpConstants.HttpHeaders.CONTINUATION;
return FeedResponse.getValueOrNull(this.inner.getResponseHeaders(), headerName);
}
/**
* Gets the session token for use in session consistency.
*
* @return the session token.
*/
public String getSessionToken() {
return FeedResponse.getValueOrNull(this.inner.getResponseHeaders(), HttpConstants.HttpHeaders.SESSION_TOKEN);
}
/**
* Gets the response headers.
*
* @return the response headers.
*/
public Map getResponseHeaders() {
return this.inner.getResponseHeaders();
}
/**
* Gets the query iterable of T.
*
* @return the iterable.
*/
public QueryIterable getQueryIterable() {
return this.inner;
}
/**
* Gets the query iterator of T.
*
* @return the iterator.
*/
public Iterator getQueryIterator() {
return this.inner.iterator();
}
private long getCurrentQuotaHeader(String headerName) {
if (this.usageHeaders.size() == 0 && !this.getMaxResourceQuota().isEmpty() &&
!this.getCurrentResourceQuotaUsage().isEmpty()) {
this.populateQuotaHeader(this.getMaxResourceQuota(), this.getCurrentResourceQuotaUsage());
}
if (this.usageHeaders.containsKey(headerName)) {
return this.usageHeaders.get(headerName);
}
return 0;
}
private long getMaxQuotaHeader(String headerName) {
if (this.quotaHeaders.size() == 0 &&
!this.getMaxResourceQuota().isEmpty() &&
!this.getCurrentResourceQuotaUsage().isEmpty()) {
this.populateQuotaHeader(this.getMaxResourceQuota(), this.getCurrentResourceQuotaUsage());
}
if (this.quotaHeaders.containsKey(headerName)) {
return this.quotaHeaders.get(headerName);
}
return 0;
}
private void populateQuotaHeader(String headerMaxQuota,
String headerCurrentUsage) {
String[] headerMaxQuotaWords = StringUtils.split(headerMaxQuota, Constants.Quota.DELIMITER_CHARS, -1);
String[] headerCurrentUsageWords = StringUtils.split(headerCurrentUsage, Constants.Quota.DELIMITER_CHARS, -1);
for (int i = 0; i < headerMaxQuotaWords.length; ++i) {
if (headerMaxQuotaWords[i].equalsIgnoreCase(Constants.Quota.DATABASE)) {
this.quotaHeaders.put(Constants.Quota.DATABASE, Long.valueOf(headerMaxQuotaWords[i + 1]));
this.usageHeaders.put(Constants.Quota.DATABASE, Long.valueOf(headerCurrentUsageWords[i + 1]));
} else if (headerMaxQuotaWords[i].equalsIgnoreCase(Constants.Quota.COLLECTION)) {
this.quotaHeaders.put(Constants.Quota.COLLECTION, Long.valueOf(headerMaxQuotaWords[i + 1]));
this.usageHeaders.put(Constants.Quota.COLLECTION, Long.valueOf(headerCurrentUsageWords[i + 1]));
} else if (headerMaxQuotaWords[i].equalsIgnoreCase(Constants.Quota.USER)) {
this.quotaHeaders.put(Constants.Quota.USER, Long.valueOf(headerMaxQuotaWords[i + 1]));
this.usageHeaders.put(Constants.Quota.USER, Long.valueOf(headerCurrentUsageWords[i + 1]));
} else if (headerMaxQuotaWords[i].equalsIgnoreCase(Constants.Quota.PERMISSION)) {
this.quotaHeaders.put(Constants.Quota.PERMISSION, Long.valueOf(headerMaxQuotaWords[i + 1]));
this.usageHeaders.put(Constants.Quota.PERMISSION, Long.valueOf(headerCurrentUsageWords[i + 1]));
} else if (headerMaxQuotaWords[i].equalsIgnoreCase(Constants.Quota.COLLECTION_SIZE)) {
this.quotaHeaders.put(Constants.Quota.COLLECTION_SIZE, Long.valueOf(headerMaxQuotaWords[i + 1]));
this.usageHeaders.put(Constants.Quota.COLLECTION_SIZE, Long.valueOf(headerCurrentUsageWords[i + 1]));
} else if (headerMaxQuotaWords[i].equalsIgnoreCase(Constants.Quota.STORED_PROCEDURE)) {
this.quotaHeaders.put(Constants.Quota.STORED_PROCEDURE, Long.valueOf(headerMaxQuotaWords[i + 1]));
this.usageHeaders.put(Constants.Quota.STORED_PROCEDURE, Long.valueOf(headerCurrentUsageWords[i + 1]));
} else if (headerMaxQuotaWords[i].equalsIgnoreCase(Constants.Quota.TRIGGER)) {
this.quotaHeaders.put(Constants.Quota.TRIGGER, Long.valueOf(headerMaxQuotaWords[i + 1]));
this.usageHeaders.put(Constants.Quota.TRIGGER, Long.valueOf(headerCurrentUsageWords[i + 1]));
} else if (headerMaxQuotaWords[i].equalsIgnoreCase(Constants.Quota.USER_DEFINED_FUNCTION)) {
this.quotaHeaders.put(Constants.Quota.USER_DEFINED_FUNCTION, Long.valueOf(headerMaxQuotaWords[i + 1]));
this.usageHeaders.put(Constants.Quota.USER_DEFINED_FUNCTION,
Long.valueOf(headerCurrentUsageWords[i + 1]));
}
}
}
}
