THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Weather
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Component
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Available
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as
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of
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Camel
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2.12
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The
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weather:
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component
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is
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used
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for
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polling
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weather
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information
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from
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-
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a
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site
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that
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provides
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free
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global
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weather
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and
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forecast
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information.
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The
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information
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is
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returned
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as
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a
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json
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String
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object.
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Camel
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will
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poll
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for
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updates
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to
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the
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current
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weather
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and
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forecasts
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once
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per
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hour
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by
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default.
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Maven
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users
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will
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need
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to
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add
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the
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following
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dependency
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to
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their
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pom.xml
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for
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this
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component:
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{code:xml}
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-weather</artifactId>
<version>x.x.x</version>
<!-- use the same version as your Camel core version -->
</dependency>
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URI format
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{code}
h3. URI format
{code}
weather://<unused name>[?options]
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Options
| Wiki Markup |
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{code} h3. Options {div:class=confluenceTableSmall} || Property || Default || Description || | {{location}} | {{null}} | If null Camel will try and determine your current location using the geolocation of your ip address, else specify the city,country. For well known city names, Open Weather Map will determine the best fit, but multiple results may be returned. Hence specifying and country as well will return more accurate data. If you specify "current" as the location then the component will try to get the current latitude and longitude and use that to get the weather details. You can use lat and lon options instead of location. | | {{lat}} | {{null}} | Latitude of location. You can use lat and lon options instead of location. | | {{lon}} | {{null}} | Longitude of location. You can use lat and lon options instead of location. | | {{period}} | {{null}} | If null, the current weather will be returned, else use values of 5, 7, 14 days. Only the numeric value for the forecast period is actually parsed, so spelling, capitalisation of the time period is up to you (its ignored) | | {{headerName}} | {{null}} | To store the weather result in this header instead of the message body. This is useable if you want to keep current message body as-is. | | {{mode}} | {{JSON}} | The output format of the weather data. The possible values are {{HTML}}, {{JSON}} or {{XML}} | | {{units}} | {{METRIC}} | The units for temperature measurement. The possible values are {{IMPERIAL}} or {{METRIC}} | | {{consumer.delay}} | {{3600000}} | Delay in millis between each poll (default is 1 hour) | | {{consumer.initialDelay}} | {{1000}} | Millis before polling starts. | | {{consumer.userFixedDelay}} | {{false}} | If {{true}}, use fixed delay between polls, otherwise fixed rate is used. See [ScheduledExecutorService|http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/ScheduledExecutorService.html] in JDK for details. | {div} |
You
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can
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append
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query
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options
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to
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the
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URI
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in
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the
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following
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format,
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?option=value&option=value&...
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Exchange data format
Camel will deliver the body as a json formatted java.lang.String
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(see
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the
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mode
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option
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above).
Message Headers
| Wiki Markup |
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h3. Message Headers {div:class=confluenceTableSmall} || Header || Description || | {{CamelWeatherQuery}} | The original query URL sent to the Open Weather Map site | | {{CamelWeatherLocation}} | Used by the producer to override the endpoint location and use the location from this header instead. | {div} h3. Samples In this sample we find the 7 day weather forecast for Madrid, Spain: {code} |
Samples
In this sample we find the 7 day weather forecast for Madrid, Spain:
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from("weather:foo?location=Madrid,Spain&period=7 days").to("jms:queue:weather");
{code}
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To
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just
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find
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the
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current
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weather
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for
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your
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current
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location
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you
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can
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use
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this:
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} from("weather:foo").to("jms:queue:weather"); {code} |
And
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to
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find
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the
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weather
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using
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the
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producer
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we
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do:
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} from("direct:start") .to("weather:foo?location=Madrid,Spain"); {code} |
And
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we
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can
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send
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in
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a
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message
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with
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a
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header
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to
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get
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the
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weather
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for
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any
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location
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as
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shown:
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} String json = template.requestBodyAndHeader("direct:start", "", "CamelWeatherLocation", "Paris,France", String.class); {code} |
And
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to
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get
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the
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weather
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at
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the
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current
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location,
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then:
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} String json = template.requestBodyAndHeader("direct:start", "", "CamelWeatherLocation", "current", String.class); {code} |