Chapter 110. Geocoder Component

Available as of Camel version 2.12

The geocoder: component is used for looking up geocodes (latitude and longitude) for a given address, or reverse lookup. The component uses the Java API for Google Geocoder library.

Maven users will need to add the following dependency to their pom.xml for this component:

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-geocoder</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>

110.1. URI format

geocoder:address:name[?options]
geocoder:latlng:latitude,longitude[?options]

110.2. Options

The Geocoder component has no options.

The Geocoder endpoint is configured using URI syntax:

geocoder:address:latlng

with the following path and query parameters:

110.2.1. Path Parameters (2 parameters):

NameDescriptionDefaultType

address

The geo address which should be prefixed with address:

 

String

latlng

The geo latitude and longitude which should be prefixed with latlng:

 

String

110.2.2. Query Parameters (14 parameters):

NameDescriptionDefaultType

clientId (producer)

To use google premium with this client id

 

String

clientKey (producer)

To use google premium with this client key

 

String

headersOnly (producer)

Whether to only enrich the Exchange with headers, and leave the body as-is.

false

boolean

language (producer)

The language to use.

en

String

httpClientConfigurer (advanced)

Register a custom configuration strategy for new HttpClient instances created by producers or consumers such as to configure authentication mechanisms etc

 

HttpClientConfigurer

httpConnectionManager (advanced)

To use a custom HttpConnectionManager to manage connections

 

HttpConnectionManager

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

proxyAuthDomain (proxy)

Domain for proxy NTML authentication

 

String

proxyAuthHost (proxy)

Optional host for proxy NTML authentication

 

String

proxyAuthMethod (proxy)

Authentication method for proxy, either as Basic, Digest or NTLM.

 

String

proxyAuthPassword (proxy)

Password for proxy authentication

 

String

proxyAuthUsername (proxy)

Username for proxy authentication

 

String

proxyHost (proxy)

The proxy host name

 

String

proxyPort (proxy)

The proxy port number

 

Integer

110.3. Exchange data format

Camel will deliver the body as a com.google.code.geocoder.model.GeocodeResponse type.
And if the address is "current" then the response is a String type with a JSON representation of the current location.

If the option headersOnly is set to true then the message body is left as-is, and only headers will be added to the Exchange.

110.4. Message Headers

HeaderDescription

CamelGeoCoderStatus

Mandatory. Status code from the geocoder library. If status is GeocoderStatus.OK then additional headers is enriched

CamelGeoCoderAddress

The formatted address

CamelGeoCoderLat

The latitude of the location.

CamelGeoCoderLng

The longitude of the location.

CamelGeoCoderLatlng

The latitude and longitude of the location. Separated by comma.

CamelGeoCoderCity

The city long name.

CamelGeoCoderRegionCode

The region code.

CamelGeoCoderRegionName

The region name.

CamelGeoCoderCountryLong

The country long name.

CamelGeoCoderCountryShort

The country short name.

Notice not all headers may be provided depending on available data and mode in use (address vs latlng).

110.5. Samples

In the example below we get the latitude and longitude for Paris, France

  from("direct:start")
    .to("geocoder:address:Paris, France")

If you provide a header with the CamelGeoCoderAddress then that overrides the endpoint configuration, so to get the location of Copenhagen, Denmark we can send a message with a headers as shown:

template.sendBodyAndHeader("direct:start", "Hello", GeoCoderConstants.ADDRESS, "Copenhagen, Denmark");

To get the address for a latitude and longitude we can do:

  from("direct:start")
    .to("geocoder:latlng:40.714224,-73.961452")
    .log("Location ${header.CamelGeocoderAddress} is at lat/lng: ${header.CamelGeocoderLatlng} and in country ${header.CamelGeoCoderCountryShort}")

Which will log

Location 285 Bedford Avenue, Brooklyn, NY 11211, USA is at lat/lng: 40.71412890,-73.96140740 and in country US

To get the current location you can use "current" as the address as shown:

  from("direct:start")
    .to("geocoder:address:current")