- Fix java.lang.NullPointerException

at com.wisemapping.util.Browser.isInUserAgentString(Browser.java:267)
      	at com.wisemapping.util.Browser.checkUserAgent(Browser.java:2 issue.
This commit is contained in:
Paulo Gustavo Veiga 2012-09-19 19:24:30 -03:00
parent f8cb849597
commit 6555203a94

View File

@ -57,164 +57,169 @@ package com.wisemapping.util;
* <a href="http://blogs.msdn.com/iemobile/archive/2006/08/03/Detecting_IE_Mobile.aspx">Detecting Internet Explorer Mobile's User-Agent on the server</a>
*/
import org.jetbrains.annotations.Nullable;
/**
* @author harald
*
*/
public class UserAgent
{
private OperatingSystem operatingSystem = OperatingSystem.UNKNOWN;
private Browser browser = Browser.UNKNOWN;
private int id;
private String userAgentString;
public UserAgent(OperatingSystem operatingSystem, Browser browser)
{
this.operatingSystem = operatingSystem;
this.browser = browser;
this.id = (( operatingSystem.getId() << 16) + browser.getId());
}
public UserAgent(String userAgentString)
{
Browser browser = Browser.parseUserAgentString(userAgentString);
OperatingSystem operatingSystem = OperatingSystem.UNKNOWN;
// BOTs don't have an interesting OS for us
if (browser != Browser.BOT)
operatingSystem = OperatingSystem.parseUserAgentString(userAgentString);
this.operatingSystem = operatingSystem;
this.browser = browser;
this.id = (( operatingSystem.getId() << 16) + browser.getId());
this.userAgentString = userAgentString;
}
public class UserAgent {
/**
* @param userAgentString
* @return UserAgent
*/
public static UserAgent parseUserAgentString(String userAgentString) {
return new UserAgent(userAgentString);
}
private OperatingSystem operatingSystem = OperatingSystem.UNKNOWN;
private Browser browser = Browser.UNKNOWN;
private int id;
private String userAgentString;
/**
* Detects the detailed version information of the browser. Depends on the userAgent to be available.
* Use it only after using UserAgent(String) or UserAgent.parseUserAgent(String).
* Returns null if it can not detect the version information.
* @return Version
*/
public Version getBrowserVersion() {
return this.browser.getVersion(this.userAgentString);
}
/**
* @return the system
*/
public OperatingSystem getOperatingSystem() {
return operatingSystem;
}
public UserAgent(OperatingSystem operatingSystem, Browser browser) {
this.operatingSystem = operatingSystem;
this.browser = browser;
this.id = ((operatingSystem.getId() << 16) + browser.getId());
}
/**
* @return the browser
*/
public Browser getBrowser() {
return browser;
}
public UserAgent(@Nullable String userAgentString) {
if (userAgentString != null) {
Browser browser = Browser.parseUserAgentString(userAgentString);
/**
* Returns an unique integer value of the operating system & browser combination
* @return the id
*/
public int getId() {
return id;
}
OperatingSystem operatingSystem = OperatingSystem.UNKNOWN;
/**
* Combined string representation of both enums
*/
public String toString() {
return this.operatingSystem.toString() + "-" + this.browser.toString();
}
/**
* Returns UserAgent based on specified unique id
* @param id
* @return
*/
public static UserAgent valueOf(int id)
{
OperatingSystem operatingSystem = OperatingSystem.valueOf((short) (id >> 16));
Browser browser = Browser.valueOf( (short) (id & 0x0FFFF));
return new UserAgent(operatingSystem,browser);
}
/**
* Returns UserAgent based on combined string representation
* @param name
* @return
*/
public static UserAgent valueOf(String name)
{
if (name == null)
// BOTs don't have an interesting OS for us
if (browser != Browser.BOT)
operatingSystem = OperatingSystem.parseUserAgentString(userAgentString);
this.operatingSystem = operatingSystem;
this.browser = browser;
this.id = ((operatingSystem.getId() << 16) + browser.getId());
this.userAgentString = userAgentString;
} else {
this.operatingSystem = OperatingSystem.UNKNOWN;
this.browser = Browser.UNKNOWN;
}
}
/**
* @param userAgentString
* @return UserAgent
*/
public static UserAgent parseUserAgentString(String userAgentString) {
return new UserAgent(userAgentString);
}
/**
* Detects the detailed version information of the browser. Depends on the userAgent to be available.
* Use it only after using UserAgent(String) or UserAgent.parseUserAgent(String).
* Returns null if it can not detect the version information.
*
* @return Version
*/
public Version getBrowserVersion() {
return this.browser.getVersion(this.userAgentString);
}
/**
* @return the system
*/
public OperatingSystem getOperatingSystem() {
return operatingSystem;
}
/**
* @return the browser
*/
public Browser getBrowser() {
return browser;
}
/**
* Returns an unique integer value of the operating system & browser combination
*
* @return the id
*/
public int getId() {
return id;
}
/**
* Combined string representation of both enums
*/
public String toString() {
return this.operatingSystem.toString() + "-" + this.browser.toString();
}
/**
* Returns UserAgent based on specified unique id
*
* @param id
* @return
*/
public static UserAgent valueOf(int id) {
OperatingSystem operatingSystem = OperatingSystem.valueOf((short) (id >> 16));
Browser browser = Browser.valueOf((short) (id & 0x0FFFF));
return new UserAgent(operatingSystem, browser);
}
/**
* Returns UserAgent based on combined string representation
*
* @param name
* @return
*/
public static UserAgent valueOf(String name) {
if (name == null)
throw new NullPointerException("Name is null");
String[] elements = name.split("-");
if (elements.length == 2)
{
OperatingSystem operatingSystem = OperatingSystem.valueOf(elements[0]);
Browser browser = Browser.valueOf(elements[1]);
return new UserAgent(operatingSystem,browser);
}
throw new IllegalArgumentException(
"Invalid string for userAgent " + name);
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((browser == null) ? 0 : browser.hashCode());
result = prime * result + id;
result = prime * result
+ ((operatingSystem == null) ? 0 : operatingSystem.hashCode());
return result;
}
String[] elements = name.split("-");
if (elements.length == 2) {
OperatingSystem operatingSystem = OperatingSystem.valueOf(elements[0]);
Browser browser = Browser.valueOf(elements[1]);
return new UserAgent(operatingSystem, browser);
}
throw new IllegalArgumentException(
"Invalid string for userAgent " + name);
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((browser == null) ? 0 : browser.hashCode());
result = prime * result + id;
result = prime * result
+ ((operatingSystem == null) ? 0 : operatingSystem.hashCode());
return result;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final UserAgent other = (UserAgent) obj;
if (browser == null) {
if (other.browser != null)
return false;
} else if (!browser.equals(other.browser))
return false;
if (id != other.id)
return false;
if (operatingSystem == null) {
if (other.operatingSystem != null)
return false;
} else if (!operatingSystem.equals(other.operatingSystem))
return false;
return true;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final UserAgent other = (UserAgent) obj;
if (browser == null) {
if (other.browser != null)
return false;
} else if (!browser.equals(other.browser))
return false;
if (id != other.id)
return false;
if (operatingSystem == null) {
if (other.operatingSystem != null)
return false;
} else if (!operatingSystem.equals(other.operatingSystem))
return false;
return true;
}
}