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## org.apache.commons.httpclient.params
Class HttpMethodParams

    java.lang.Object
      org.apache.commons.httpclient.params.DefaultHttpParams
          org.apache.commons.httpclient.params.HttpMethodParams

All Implemented Interfaces:
  Serializable, Cloneable, HttpParams

Direct Known Subclasses:
  HttpClientParams

    public class HttpMethodParams

extends DefaultHttpParams

This class represents a collection of HTTP protocol parameters applicable to `HTTP methods`. Protocol parameters may be linked together to form a hierarchy. If a particular parameter value has not been explicitly defined in the collection itself, its value will be drawn from the parent collection of parameters.

Since:
  3.0
Version:
  $Revision: 483949 $
Author:
  Oleg Kalnichevski, Christian Kohlschuetter
See Also:
  Serialized Form

Field Summary
`static String` | `BUFFER_WARN_TRIGGER_LIMIT` Sets the maximum buffered response size (in bytes) that triggers no warning.
`static String` | `COOKIE_POLICY` Defines `cookie policy` to be used for cookie management.
`static String` | `CREDENTIAL_CHARSET` Defines the charset to be used when encoding `Credentials`.
`static String` | `DATE_PATTERNS` The key used to look up the date patterns used for parsing.
`static String` | `HEAD_BODY_CHECK_TIMEOUT` Sets period of time in milliseconds to wait for a content body sent in response to `HEAD method` from a non-compliant server.
`static String` | `HTTP_CONTENT_CHARSET` Defines the charset to be used for encoding content body.
`static String` | `HTTP_ELEMENT_CHARSET` Defines the charset to be used for encoding HTTP protocol elements.
`static String` | `HTTP_URI_CHARSET` Defines the charset to be used for parsing URIs.
`static String` | `MULTIPART_BOUNDARY` Sets the value to use as the multipart boundary.
`static String` | `PROTOCOL_VERSION` Defines the `HTTP protocol version` used by `HTTP methods` per default.
`static String` | `REJECT_HEAD_BODY` Defines whether the content body sent in response to `HeadMethod` should be rejected.
`static String` | `RETRY_HANDLER` Sets the method retry handler parameter.
`static String` | `SINGLE_COOKIE_HEADER` Defines whether `cookies` should be put on a single `response header`.
`static String` | `SO_TIMEOUT` Sets the socket timeout (`SO_TIMEOUT`) in milliseconds to be used when executing the method.
`static String` | `STATUS_LINE_GARBAGE_LIMIT` Defines the maximum number of ignorable lines before we expect a HTTP response's status code.
`static String` | `STRICT_TRANSFER_ENCODING` Defines whether responses with an invalid `Transfer-Encoding` header should be rejected.
`static String` | `UNAMBIGUOUS_STATUS_LINE` Defines whether `HTTP methods` should reject ambiguous `HTTP status line`.
`static String` | `USE_EXPECT_CONTINUE` Activates 'Expect: 100-Continue' handshake for the `entity enclosing methods`.
`static String` | `USER_AGENT` Defines the content of the `User-Agent` header used by `HTTP methods`.
`static String` | `VIRTUAL_HOST` Defines the virtual host name.
`static String` | `WARN_EXTRA_INPUT` Defines HttpClient's behavior when a response provides more bytes than expected (specified with Content-Length, for example).

Constructor Summary
`HttpMethodParams()` Creates a new collection of parameters with the collection returned by `DefaultHttpParams.getDefaultParams()` as a parent.
`HttpMethodParams(HttpParams defaults)` Creates a new collection of parameters with the given parent.

Method Summary
`String` | `getContentCharset()` Returns the default charset to be used for writing content body, when no charset explicitly specified.
`String` | `getCookiePolicy()` Returns `cookie policy` to be used by the `HTTP methods` this collection of parameters applies to.
`String` | `getCredentialCharset()` Returns the charset to be used for `Credentials`.
`String` | `getHttpElementCharset()` Returns the charset to be used for writing HTTP headers.
`int` | `getSoTimeout()` Returns the default socket timeout (`SO_TIMEOUT`) in milliseconds which is the timeout for waiting for data.
`String` | `getUriCharset()` Returns the charset to be used for parsing URIs.
`HttpVersion` | `getVersion()` Returns `HTTP protocol version` to be used by the `HTTP methods` that this collection of parameters applies to.
`String` | `getVirtualHost()` Returns the virtual host name.
`void` | `makeLenient()` Makes the `HTTP methods` attempt to mimic the exact behaviour of commonly used HTTP agents, which many HTTP servers expect, even though such behaviour may violate the HTTP protocol specification (RFC 2616 and other relevant RFCs).
`void` | `makeStrict()` Makes the `HTTP methods` strictly follow the HTTP protocol specification (RFC 2616 and other relevant RFCs).
`void` | `setContentCharset(String charset)` Sets the default charset to be used for writing content body, when no charset explicitly specified.
`void` | `setCookiePolicy(String policy)` Assigns the `cookie policy` to be used by the `HTTP methods` this collection of parameters applies to.
`void` | `setCredentialCharset(String charset)` Sets the charset to be used for writing HTTP headers.
`void` | `setHttpElementCharset(String charset)` Sets the charset to be used for writing HTTP headers.
`void` | `setSoTimeout(int timeout)` Sets the default socket timeout (`SO_TIMEOUT`) in milliseconds which is the timeout for waiting for data.
`void` | `setUriCharset(String charset)` Sets the charset to be used for parsing URIs.
`void` | `setVersion(HttpVersion version)` Assigns the `HTTP protocol version` to be used by the `HTTP methods` that this collection of parameters applies to.
`void` | `setVirtualHost(String hostname)` Sets the virtual host name.

Methods inherited from class org.apache.commons.httpclient.params.DefaultHttpParams
`clear, clone, getBooleanParameter, getDefaultParams, getDefaults, getDoubleParameter, getIntParameter, getLongParameter, getParameter, isParameterFalse, isParameterSet, isParameterSetLocally, isParameterTrue, setBooleanParameter, setDefaults, setDoubleParameter, setHttpParamsFactory, setIntParameter, setLongParameter, setParameter, setParameters`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### USER_AGENT

    public static final String USER_AGENT

  Defines the content of the `User-Agent` header used by `HTTP methods`.

  This parameter expects a value of type `String`.

  See Also:
    Constant Field Values

### PROTOCOL_VERSION

    public static final String PROTOCOL_VERSION

  Defines the `HTTP protocol version` used by `HTTP methods` per default.

  This parameter expects a value of type `HttpVersion`.

  See Also:
    Constant Field Values

### UNAMBIGUOUS_STATUS_LINE

    public static final String UNAMBIGUOUS_STATUS_LINE

  Defines whether `HTTP methods` should reject ambiguous `HTTP status line`.

  This parameter expects a value of type `Boolean`.

  See Also:
    Constant Field Values

### SINGLE_COOKIE_HEADER

    public static final String SINGLE_COOKIE_HEADER

  Defines whether `cookies` should be put on a single `response header`.

  This parameter expects a value of type `Boolean`.

  See Also:
    Constant Field Values

### STRICT_TRANSFER_ENCODING

    public static final String STRICT_TRANSFER_ENCODING

  Defines whether responses with an invalid `Transfer-Encoding` header should be rejected.

  This parameter expects a value of type `Boolean`.

  See Also:
    Constant Field Values

### REJECT_HEAD_BODY

    public static final String REJECT_HEAD_BODY

  Defines whether the content body sent in response to `HeadMethod` should be rejected.

  This parameter expects a value of type `Boolean`.

  See Also:
    Constant Field Values

### HEAD_BODY_CHECK_TIMEOUT

    public static final String HEAD_BODY_CHECK_TIMEOUT

  Sets period of time in milliseconds to wait for a content body sent in response to `HEAD method` from a non-compliant server. If the parameter is not set or set to `-1` non-compliant response body check is disabled.

  This parameter expects a value of type `Integer`.

  See Also:
    Constant Field Values

### USE_EXPECT_CONTINUE

    public static final String USE_EXPECT_CONTINUE

  Activates 'Expect: 100-Continue' handshake for the `entity enclosing methods`. The purpose of the 'Expect: 100-Continue' handshake to allow a client that is sending a request message with a request body to determine if the origin server is willing to accept the request (based on the request headers) before the client sends the request body.

  The use of the 'Expect: 100-continue' handshake can result in noticable peformance improvement for entity enclosing requests (such as POST and PUT) that require the target server's authentication.

  'Expect: 100-continue' handshake should be used with caution, as it may cause problems with HTTP servers and proxies that do not support HTTP/1.1 protocol.

  This parameter expects a value of type `Boolean`.

  See Also:
    Constant Field Values

### CREDENTIAL_CHARSET

    public static final String CREDENTIAL_CHARSET

  Defines the charset to be used when encoding `Credentials`. If not defined then the `HTTP_ELEMENT_CHARSET` should be used.

  This parameter expects a value of type `String`.

  See Also:
    Constant Field Values

### HTTP_ELEMENT_CHARSET

    public static final String HTTP_ELEMENT_CHARSET

  Defines the charset to be used for encoding HTTP protocol elements.

  This parameter expects a value of type `String`.

  See Also:
    Constant Field Values

### HTTP_URI_CHARSET

    public static final String HTTP_URI_CHARSET

  Defines the charset to be used for parsing URIs.

  This parameter expects a value of type `String`.

  See Also:
    Constant Field Values

### HTTP_CONTENT_CHARSET

    public static final String HTTP_CONTENT_CHARSET

  Defines the charset to be used for encoding content body.

  This parameter expects a value of type `String`.

  See Also:
    Constant Field Values

### COOKIE_POLICY

    public static final String COOKIE_POLICY

  Defines `cookie policy` to be used for cookie management.

  This parameter expects a value of type `String`.

  See Also:
    Constant Field Values

### WARN_EXTRA_INPUT

    public static final String WARN_EXTRA_INPUT

  Defines HttpClient's behavior when a response provides more bytes than expected (specified with Content-Length, for example).

  Such surplus data makes the HTTP connection unreliable for keep-alive requests, as malicious response data (faked headers etc.) can lead to undesired results on the next request using that connection.

  If this parameter is set to `true`, any detection of extra input data will generate a warning in the log.

  This parameter expects a value of type `Boolean`.

  See Also:
    Constant Field Values

### STATUS_LINE_GARBAGE_LIMIT

    public static final String STATUS_LINE_GARBAGE_LIMIT

  Defines the maximum number of ignorable lines before we expect a HTTP response's status code.

  With HTTP/1.1 persistent connections, the problem arises that broken scripts could return a wrong Content-Length (there are more bytes sent than specified).
  Unfortunately, in some cases, this is not possible after the bad response, but only before the next one.
  So, HttpClient must be able to skip those surplus lines this way.

  Set this to 0 to disallow any garbage/empty lines before the status line.
  To specify no limit, use `Integer.MAX_VALUE` (default in lenient mode).

  This parameter expects a value of type `Integer`.

  See Also:
    Constant Field Values

### SO_TIMEOUT

    public static final String SO_TIMEOUT

  Sets the socket timeout (`SO_TIMEOUT`) in milliseconds to be used when executing the method. A timeout value of zero is interpreted as an infinite timeout.

  This parameter expects a value of type `Integer`.

  See Also:
    `SocketOptions.SO_TIMEOUT`, Constant Field Values

### DATE_PATTERNS

    public static final String DATE_PATTERNS

  The key used to look up the date patterns used for parsing. The String patterns are stored in a `Collection` and must be compatible with `SimpleDateFormat`.

  This parameter expects a value of type `Collection`.

  See Also:
    Constant Field Values

### RETRY_HANDLER

    public static final String RETRY_HANDLER

  Sets the method retry handler parameter.

  This parameter expects a value of type `HttpMethodRetryHandler`.

  See Also:
    Constant Field Values

### BUFFER_WARN_TRIGGER_LIMIT

    public static final String BUFFER_WARN_TRIGGER_LIMIT

  Sets the maximum buffered response size (in bytes) that triggers no warning. Buffered responses exceeding this size will trigger a warning in the log.

  This parameter expects a value if type `Integer`.

  See Also:
    Constant Field Values

### VIRTUAL_HOST

    public static final String VIRTUAL_HOST

  Defines the virtual host name.

  This parameter expects a value of type `String`.

  See Also:
    Constant Field Values

### MULTIPART_BOUNDARY

    public static final String MULTIPART_BOUNDARY

  Sets the value to use as the multipart boundary.

  This parameter expects a value if type `String`.

  See Also:
    `MultipartRequestEntity`, Constant Field Values

Constructor Detail

### HttpMethodParams

    public HttpMethodParams()

  Creates a new collection of parameters with the collection returned by `DefaultHttpParams.getDefaultParams()` as a parent. The collection will defer to its parent for a default value if a particular parameter is not explicitly set in the collection itself.

  See Also:
    `DefaultHttpParams.getDefaultParams()`

### HttpMethodParams

    public HttpMethodParams(HttpParams defaults)

  Creates a new collection of parameters with the given parent. The collection will defer to its parent for a default value if a particular parameter is not explicitly set in the collection itself.

  Parameters:
    `defaults` - the parent collection to defer to, if a parameter is not explictly set in the collection itself.
  See Also:
    `DefaultHttpParams.getDefaultParams()`

Method Detail

### getHttpElementCharset

    public String getHttpElementCharset()

  Returns the charset to be used for writing HTTP headers.

  Returns:
    The charset

### setHttpElementCharset

    public void setHttpElementCharset(String charset)

  Sets the charset to be used for writing HTTP headers.

  Parameters:
    `charset` - The charset

### getContentCharset

    public String getContentCharset()

  Returns the default charset to be used for writing content body, when no charset explicitly specified.

  Returns:
    The charset

### setUriCharset

    public void setUriCharset(String charset)

  Sets the charset to be used for parsing URIs.

  Parameters:
    `charset` - The charset

### getUriCharset

    public String getUriCharset()

  Returns the charset to be used for parsing URIs.

  Returns:
    The charset

### setContentCharset

    public void setContentCharset(String charset)

  Sets the default charset to be used for writing content body, when no charset explicitly specified.

  Parameters:
    `charset` - The charset

### getCredentialCharset

    public String getCredentialCharset()

  Returns the charset to be used for `Credentials`. If not configured the `HTTP element charset` is used.

  Returns:
    The charset

### setCredentialCharset

    public void setCredentialCharset(String charset)

  Sets the charset to be used for writing HTTP headers.

  Parameters:
    `charset` - The charset

### getVersion

    public HttpVersion getVersion()

  Returns `HTTP protocol version` to be used by the `HTTP methods` that this collection of parameters applies to.

  Returns:
    `HTTP protocol version`

### setVersion

    public void setVersion(HttpVersion version)

  Assigns the `HTTP protocol version` to be used by the `HTTP methods` that this collection of parameters applies to.

  Parameters:
    `version` - the `HTTP protocol version`

### getCookiePolicy

    public String getCookiePolicy()

  Returns `cookie policy` to be used by the `HTTP methods` this collection of parameters applies to.

  Returns:
    `cookie policy`

### setCookiePolicy

    public void setCookiePolicy(String policy)

  Assigns the `cookie policy` to be used by the `HTTP methods` this collection of parameters applies to.

  Parameters:
    `policy` - the `cookie policy`

### getSoTimeout

    public int getSoTimeout()

  Returns the default socket timeout (`SO_TIMEOUT`) in milliseconds which is the timeout for waiting for data. A timeout value of zero is interpreted as an infinite timeout.

  Returns:
    timeout in milliseconds

### setSoTimeout

    public void setSoTimeout(int timeout)

  Sets the default socket timeout (`SO_TIMEOUT`) in milliseconds which is the timeout for waiting for data. A timeout value of zero is interpreted as an infinite timeout.

  Parameters:
    `timeout` - Timeout in milliseconds

### setVirtualHost

    public void setVirtualHost(String hostname)

  Sets the virtual host name.

  Parameters:
    `hostname` - The host name

### getVirtualHost

    public String getVirtualHost()

  Returns the virtual host name.

  Returns:
    The virtual host name

### makeStrict

    public void makeStrict()

  Makes the `HTTP methods` strictly follow the HTTP protocol specification (RFC 2616 and other relevant RFCs). It must be noted that popular HTTP agents have different degree of HTTP protocol compliance and some HTTP serves are programmed to expect the behaviour that does not strictly adhere to the HTTP specification.

### makeLenient

    public void makeLenient()

  Makes the `HTTP methods` attempt to mimic the exact behaviour of commonly used HTTP agents, which many HTTP servers expect, even though such behaviour may violate the HTTP protocol specification (RFC 2616 and other relevant RFCs).

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